new today,
better tomorrow

Dec 29, 2025
Canary
Updated daily, may be unstable
1.7b
Jan 14, 2025

What's new in 1.7b

Firefox 134.0.1
GitHub Release
GitHub Run

This is a small update, but it brings some nice improvements to the workspace and the overall experience.

IMPORTANT FOR FLATPAK USERS: The app id has changed, please see this post for instructions on how to migrate

✨ New

Updated to firefox 134.0.1 (Fixes the YouTube issue!)

New workspace behavior when closing tabs, it's more customizable now

Improved workspace transitioning, giving it a more realistic and smooth feel

Made context switching animations context aware, making them more intuitive

Improved glance animations

Compact mode now has a better opening transition and compact mode sidebar has a small delay when closing

Essential tabs now have the favicon as the background

Enabled full LTO for windows and linux builds (speed and size improvement)

Added support for better UI in rounded corners, giving a more native feel to the app

Fixed paddings on the sidebar if the element-separation is too small

🐞 Bug Fixes

Fixed wrong spacing when using right side tabs

Fixed URL bar being below the tabs visually (Issue #4276)

Fixed the browser not closing when the last tab is closed (and the preference is set)

Fixed keyboard shortcuts being restarted on startup, saying they are corrupted

Fixed unfocusing the browser with widget.gtk.rounded-bottom-corners.enabled causes the bottom corners to stop being rounded (Issue #4294)

Fixed a small border being visible at the top of the window (Issue #4264)

Fixed compact mode not closing sometimes if the mouse is moved too fast

Fixed essentials not re-appearing when multiple windows are closed at the same time

Fixed spacing when a workspace doesn't have any icons

🚧 Breaking Changes

MacOS users default toolbar layout has the webpanels button removed

Disabled smooth scroll on tabs by default (like it was in previous versions)

Changed flatpak id from 'io.github.zen_browser.zen' to 'app.zen_browser.zen'

We are back again with yet another stability update!

This update focused on finally fixing the main issues people have with essentials/pinned tabs and improving the experience and UI.

We've improved the browser's overall UI and feel, added new optimized and bouncy animations, made some quality-of-life improvements, and are having a great time!

One thing to expect in future releases is the implementation of a new settings window, where all Zen-specific features can be easily customized and toggled.

✨ New

Made compact mode individual for each window

New shadows, colors, fonts, spacing and animations!

Pinned tabs wont have a scrollbar (or max height) anymore unless it covers 90% of the screen

Compact mode delay before closing has been reduced

New compact mode animations and feel

Made the sidebar icons overflow! Meaning the size wont matter anymore on the number of top icons

Tweaked values for windows to provide a more native feel

🐞 Bug Fixes

Fixed essentials and pinned tabs not being correctly restored when using multiple windows

Fixed bookmarks failing to correctly initialize when using multiple windows

Fixed 1password always prompting for password with the message 'It looks like Firefox has been updated'

Fixed macos users having all toolbar buttons on the right side

Fixed having one extra pixel on the web views, leading to weird UI

Refactored overall UI and spacings

Fixed unloading tabs still taking up memory

Fixed essentials being deleted when closing the last window

Fixed split views leading to weird margins

Fixed the sidebar thinking the mouse is over them when it's not

Workspaces no longer run into problems caused by timing issues. This means a big improvement in reliability, especially when using multiple windows or processes at the same time

Fixed unloading tabs while having the devtools open

Fixed essentials trying to duplicate them before all windows have been restored

Fixed weird margins when using the web panels

Fixed animations when trying to switch workspaces but no other workspace exists

Fixed dialogs having bad contrast on some themes

Fixed the sidebar thinking it's being hovered when opening the URL bar

🚧 Breaking Changes

Changed default setting for 'Essentials favicon in background' to false, These settings will be better handled once we have a customized settings page (toggle zen.theme.essentials-favicon-bg in about:config to change it back)

Changed the about:config 'close window with last tab' default value to false

Another stability update, where we've fixed a few more bugs and improved the overall feel of the app.

This is a small update, released primarily to keep Firefox up to date while we work on the next big update.

✨ New

Update Firefox version to 134.0.2

Improved glance animations

Glance now opens automatically on essential tabs instead of a new tab

Add dark mode support for dialog box

Essentials/URL bar background is now calculated based on the window color, making it look more blended

Adjusted overall spacings and rounded corners around the browser for a better feel

🐞 Bug Fixes

Fixed firefox sidebar spacings

Fixed compact mode rounded corners

Fixed native fonts for windows and linux

Fixed sidebar hiding icons when they could easily fit

Fixed native rounded corners for each OS

Fixed an error when opening zen when having compact mode enabled

Fixed glance messing up with tabs after being closed

Fixed workspaces not initializing when the button is missing from the toolbar

In this release, more stability and performance improvements have been made.

✨ New

Macos users with single toolbar layout will now NOT have the three dots panel button. This is done to decreased used space. Alternatives can be using the macos native menu bar or disabling it with 'zen.view.mac.show-three-dot-menu' in about:config

MacOS builds are now in a single, unified DMG file

Pinned tabs AND normal tabs will now scroll together in order to increase visibility

Glance now has a more native feel to it

Glance will now wait for the answer to 'this page might not save your data' before closing the tab

Better and more consistent workspace transition for touchpad users

Added more native tab border radius

Split view rearrangement now has transition animations

Improved the display of workspace icons in the workspace switcher

New tab animation is now smoother

Increase tab unloader timeout from 20 to 40 minutes

Compact mode doesn't animate if the mouse is already on the sidebar

Made the animation of workspace switching faster and smoother

Add ellipsis to URL bar placeholder text for improved visibility

If the newtab button is at the top, new tabs will be inserted at the top as well

🐞 Bug Fixes

Fixed essentials background having the wrong border radius

Fixed compact mode sidebar not re-opening when the animation key is off

Fixed closing pinned tabs with CTRL+W making the browser unusable

Fixed glance opening on essential tabs even if it's disabled (Issue #4564)

Fixed crash on overflow menu in macos

Fixed elements shifting on macos fullscreen

Fixed changing entering on customizable mode when having multiple windows

Fixed empty space on top of the vertical tabs when there's no buttons inside it

Fixed having an empty overflow menu when using single toolbar layout

Fixed print dialog not opening and fixed website dialogs being clipped

Fixed keyboard shortcuts not working after pinning extension to the bookmarks bar

Fixed tabs overflowing the browser when closing multiple essential tabs

Fixed visual inconsistency with split view confirmation popup

🚧 Breaking Changes

The default newtab position is now at the top (can be disabled in the settings under Look & Feel)

Changed default pinned behavior where it always opens a new tab if only pinned tabs exist

Quick fix for a critical bug that was introduced in the previous release.

🐞 Bug Fixes

Fixed the browser not opening when having multiple windows

Fixed macos fullscreen having a weird shadow

Another stability update while we are figuring big improvements out!

This update has been focused on adding some cool new features such as removing the need of new tabs and a better glance experience. We have also fixed a lot of bugs that have been reported by the community, thank you for your feedback!

✨ New

Updated to firefox 135.0

NEW TABS HAVE BEEN REMOVED, instead we are opting for opening the URL bar and then pressing enter to open a new tab ('zen.urlbar.replace-newtab' to false in about:config to revert)

Added the ability to pinning or adding to essentials by simply dragging and dropping

Add thin scrollbar style to vertical tabs for improved aesthetics

Added support for having glance in multiple tabs!

Floating URL bar doesn't show the compact mode sidebar anymore

Added a 'copy current URL as markdown' shortcut

New glance UI and animations

New icons!

Improved workspace switching with gestures

🐞 Bug Fixes

Fixed double clicking the sidebar not opening a new tab

Fixed having tabs for workspace containers not changing containers

Fixed tabs scrolling to the top each time a tab is closed

Fixed 'Switch to workspace where container is set as default when opening container tabs' not working

Fixed sidebar spacings and styling issues

Fixed glance sometimes crashing when opening a new tab

Fixed workspaces switching randomly when closing a tab in certain scenarios

Fixed hard-locks randomly appearing, often due to keyboard shortcuts

Fixed essentials having scrollbar issues

Fixed glance tabs being unloaded

Fixed unloading about: pages making the browser unresponsive

Fixed settings page not displaying correctly some of the shortcut descriptions

Fixed mute button having a broken icon

Fixed bug where container-specific essentials don't remain focused when switching workspaces

🚧 Breaking Changes

Disabled tab previews by default, can be enabled in settings

We now use the .tar.xz format for the linux release

New tabs have been removed, check the features section

Replaced default toolbar layout, the profile button with the settings icon

This release is a small one, but it brings a few fixes and a new feature.

✨ New

Tabs can now be dragged into pinned tabs by dragging them into the workspace indicator

🐞 Bug Fixes

Fixed sidebar icons all looking the same

Fixed floating URL bar making the compact mode appear for some time

Fixed tabs appearing on the pinned tabs section

Fixed middle mouse click on the sidebar not opening a new tab

Fixed notifications not being able to be closed

Fixed URL bar margins when using single toolbar mode

Fixed tabs scrolling to the top constantly

Fixed changing tabs not being scrolled to when overflowing the sidebar

Fixed opening glance tabs on essentials messing up the sidebar

Fixed pinned tabs appearing on normal container after a restart

1.8b
Feb 21, 2025

Huge update filled with improvements and QoL features.

P.S. Check out this cool site! https://doeszenhavedrmyet.com/

✨ New

🔥 Tabs are handled in different containers, meaning faster transitions and better swiping experience

🔥 Added support for acrylic backgrounds for windows 11 with mica support

🔥 Added a better gradient generator that follows color theory

🔥 Added support renaming pinned tabs

🔥 Added support for a state-less empty tab (only enabled if 'zen.urlbar.replace-newtab' is enabled)

🔥 New, better on boarding experience

Pinned tabs will now have an 'indicator' to reset back to the original URL

Windows users will now be able to watch DRM content (experimental wmfcdm encrypted media, off by default)

Improved URL bar styles, colors and more

Updated to firefox 135.0.1

When opening a new tab with the URL bar, the newtab button is now selected for better understanding

Added a timer setting that states how much the newtab URL bar should wait before clearing it's contents (default is 45 seconds)

Faster initialization of the UI and better initial loading experience

Increased font size for macos users

MacOS users will now have zen display as 'Zen' instead of 'Zen Browser' in the native top bar

Removed 'status alert' green dot from tabs

Added improved and bouncier toast notifications

URL bar is now fully floatable, always at the center of the screen and with better looks

Added an option to completely ignore hovering over the compact mode sidebar ('zen.view.compact.show-sidebar-and-toolbar-on-hover' in about:config)

Improved shadows, borders and corners in common UI elements

Compact mode now also gets texture if any is set

MacOS window buttons are now mono colored (zen.widget.mac.mono-window-controls in about:config)

Add support for additional languages: Welsh, Estonian, Persian, Finnish, Hebrew, and Icelandic

Swiping between workspaces now has a force feedback and a maximum limit

Double clicking on an essential now resets to the original URL

Changed default behavior of the '-' button on pinned tabs to reset, unload and switch the tab

🐞 Bug Fixes

Fixed weird text generation when rendering PDFs/Google Docs on some websites, without the need to disable hardware acceleration

Fixed glance opening on the wrong location when expanding while opened on a normal tab

Fixed tabs being clipped while dragging with the touchpad

Fixed the floating URL bar hiding while doing IME composition

Fixed transparent URL bar when focusing it on fullscreen

Fixed workspace switching sometimes selecting the wrong previously selected tab

Fixed tabs sharing screens not hiding when switching workspaces

Fixed URL bar glitching when focusing in compact mode

Fixed pinned tabs separator using the wrong tabs when hiding

Fixed rearranging essential tabs containing glance tabs

Fixed normal tabs opening where pinned tabs are after having a glance tab opened

Fixed trying to unload an about:* page rendering the browser useless

Fixed floating URL bar glitching hovering compact mode sidebar

Fixed pinned/essentials tabs being reorganized when opening multiple windows

Fixed renaming/changing icons on some occasions not working

Fixed pinning tabs with glance opened not working

Fixed pinned tabs / essentials opening in the container that the window was opened

Fixed not being able to move around multiple pinned tabs at the same time

Fixed selecting essentials/pinned tabs when switching workspaces

Fixed opening new windows with container specific essentials showing all at once

🚧 Breaking Changes

Removed profile switching toolbar button and dialog, now that firefox will release them in their next version

Bottom toolbar has been reset to the default

Small update with some bug fixes and improvements.

🐞 Bug Fixes

Fixed updating from older versions not showing tabs from other workspaces at startup

Fixed double-clicking on essentials not restoring their URL

Fixed re-ordering tabs with glance changing locations

Fixed opening the settings page not selecting the tab

Fixed issues where a new profile would be created

Fixed floating URL bar when entering compact mode using double toolbars

Another update with many bug fixes!

✨ New

localhost and http URL will no longer be trimmed in single toolbar layout

🐞 Bug Fixes

Fixed pinned tabs re-ordering on startup

Fixed bookmarks not inheriting the container from the workspace

Fixed URL bar in compact mode being clipped by the window

Fixed re-ordering normal tabs not working sometimes

Fixed pinning a tab adding them to the essentials container

Other small fixes for compact mode not animating properly

1.9b
Mar 7, 2025

Another nice update for Zen! This time, we've added a new feature that allows you to drag-and-drop tabs into the browser to split them!

✨ New

Updated to Firefox 136.0

Added support for a drag-and-drop tab split feature that also groups tabs in a nice UI!

Implemented a more complete JPEG XL decoding and OS support, allowing things such as animated images and more

Allow having full URL without https in sidebar (zen.urlbar.show-domain-only-in-sidebar)

Add preference to hide one-off search buttons (off by default, zen.urlbar.hide-one-offs)

Added martial arts emoji to the default emoji set

MacOS users can now control what window material they have (zen.widget.macos.window-material, 1 to 7, default is 2)

Added support to drag-and-drop tabs from other windows while in compact mode

Small improvements to padding around the website and URL bar

Favicons should render with better corners now

Did some improvements to the default onboarding essentials selection as some people had concerns about them

🐞 Bug Fixes

Fixed pinned tabs being subject to appearing on the essentials container

Fixed opening bookmarks on empty tab pages

Fixed automatic Glance opening from the edge of the screen

Fixed background gradients not showing the colors in the correct order

Fixed creating essentials being in the wrong order

Fixed watermark not waiting enough time and startup layout

Fixed reordering tabs not being correctly saved for pinned tabs

Fixed bookmark items not opening

Fixed not hiding empty tab from add-ons, crashing the browser on some cases

Fixed compact mode sidebar animating on an empty state and not animating properly when having the URL bar floating

Fixed expanding glance not opening in the correct position when having container specific essentials

Fixed external links not opening in the correct workspace container

Fixed the AppImage version not being able to set itself as the default web browser

Fixed closing the browser in an empty state opening about:blank on startup

Fixed Linux users crashing when closing the laptop lid

Fixed dragging tabs from different windows crashing the browser if they are from different containers

Another update with stability improvements.

✨ New

Added the option to drag-and-drop a tab to the right side of the screen to split

Updated to Firefox 136.0.1

Glance now asks for confirmation before closing if it's focused on an input field

🐞 Bug Fixes

Fixed new tabs opening where Essentials are in some cases

Fixed a bug where workspace-specific bookmarks don't work

Fixed re-arranging tabs while having Glance opened

Fixed UI issues with double toolbar in the URL bar icons

Fixed dropping tabs outside of the window not opening the new tab

Fixed session restore not working with closed windows

Fixed compact mode not hiding when minimizing the window

1.10b
Mar 18, 2025

This small but mighty update includes some exciting new features and improvements to Zen, such as passkey support for MacOS, and a media player controller that's fully integrated with Picture-in-Picture mode.

✨ New

Added support for passkeys on MacOS

Added a media player controller that's fully integrated with Picture-in-Picture mode

Updated to Firefox 136.0.2

Added a default favicon for broken site favicons

Better toast notifications UI

Pressing ESC on newtab URL bar will now focus the web view, meaning the input will be fully blurred

🐞 Bug Fixes

Glance should no longer close if 'onbeforeunload' is triggered

Fixed splitting more than 3 tabs by dragging them to the web view

Fixed unloading pinned tabs that had 'onbeforeunload' listeners

Fixed and tweaked small UI issues with spacing, animations, and more

Fixed toolbars being different sizes and overflowing buttons not hidding when starting the browser

For Wayland users, fixed UI panels being cut off the screen (e.g. install extension panel)

Fixed opening external links not being focused and appearing at the end of the tab list

A small update with some bug fixes and improvements. We've also added a feature many of you have been asking for: a minimize button for Picture-in-Picture mode!

✨ New

Added a minimize button to Picture-in-Picture

Workspace icons will now collapse if there are too many overflowing the sidebar

Media player now also accounts for video playback speed modifiers

🐞 Bug Fixes

Fixed media player having low contrast on automatic theme

Fixed removing dots on the gradient generator, making more appear when changing the color

Fixed tab unloader asking for confirmation to leave the site before unloading tabs

Fixed drag-to-pin not working on private windows

Fixed overflowing tabs scrolling to the top when the media player is open

Fixed unloaded tabs still taking up memory

Fixed Flatpak users mounting shader cache to the wrong directory

Just a small update to improve stability while we work on much bigger things like: tab folders, a new workspace management UI, a new settings panel, and more. Sorry!

✨ New

Updated to Firefox 136.0.3

Split views now persist across restarts

Toasts will now appear on the left when the sidebar is on the right

🐞 Bug Fixes

Fixed the media player's playback rate and overflow not being updated correctly

Fixed pinning tabs in private mode making the browser unresponsive

Fixed compact mode and back/forward mouse buttons switching workspaces or not hiding the sidebar

Terribly sorry for the frequent updates, this emergency release simply updates Firefox, fixing a critical vulnerability in chromium's sandboxing system. You can read more here:

https://cyberinsider.com/firefox-says-its-vulnerable-to-chromes-zero-day-used-in-espionage-attacks/

✨ New

Updated Firefox to 136.0.4

1.11b
Apr 3, 2025

What's new in 1.11b

This update brings in some new QoL improvements that we think you'll love, and more stability!

✨ New

Updated to Firefox 137.0

Added support for 'split Glance tab' in the Glance button menu

Added support for Mica context menus and panels

Added support for MacOS native panel backgrounds

Mica and acrylic don't require a restart anymore to take effect

Increased security by following Mozilla's new guidelines for parent process event handling

🐞 Bug Fixes

Fixed dialogs in Glance tabs shrinking

Fixed Glance opening links that are not http(s) or files (such as magnet links)

Fixed opening Glance tabs while in a split view

Fixed huge performance degradation and high CPU usage when using extensions with the 'tab access' permission (Issue #7057)

Fixed windows showing Mozilla as Zen's vendor

Fixed opening the certificate manager from the settings (Issue #7083)

Tab unloader now unloads tabs that are not in the current workspace

Fixed tabs not moving to forced workspaces

Media Playback Continues After Unloading a Pinned Tab (Issue #6995)

Fixed restoring tabs with split views making the browser not load anything

Fixed other related workspace changing issues

🚧 Breaking Changes

While we understand some of you used the web panels feature, recent research lead us to completely removing it due to security concerns and difficulties in maintaining it. We recommend using split views instead. We are very sorry for the inconvenience this may cause.

This small update brings some nice fixes and stability improvements to Zen

🐞 Bug Fixes

Fixed Glance not becoming it's own tab when expanding

Fixed custom colors not persisting across sessions

Fixed compact mode on the right shifting the website to the left

Another stability update for Zen, while we prepare some cool new features for the future! Clue: it starts with an 'F'

✨ New

Updated to Firefox 137.0.1

Added support for Linux transparency under the zen.widget.linux.transparency preference

Added support for drag-and-drop essentials to split 2 tabs together; when pinning a non-pinned tab with a pinned tab, the pinned tab will be duplicated instead of being added into the split view group

🐞 Bug Fixes

Fixed the URL bar showing a transparent background after clicking 'Ctrl+T' in a fullscreen video (Issue #6996)

Fixed the browser breaking shortly after 'Close other tabs (Issue #7459)

Fixed the opacity of #urlbar element sometimes being overwritten (Issue #7454)

Fixed flashbangs on Mica context panels

Fixed Firefox sidebar staying on the left permanently

Other fixes to compact mode, Glance and PiP integration with the media player

We are back with some nice QoL improvements and bug fixes. We decided that the release of Firefox 138 will be the defining moment for Zen, allowing stable enough groups for us to release tab folders! We are also working on something called 'Zen Library'!

✨ New

On MacOS, you can now cycle through tabs with 'Cmd+Option+UP' or 'Cmd+Option+DOWN'

Blurring the input will now fully un-select the text

Windows binaries are now correctly signed and should not be flagged by any antivirus

New media control state for sites using WebRTC, like Discord and Google Meet that allows you to mute/unmute the camera and mic

Added better support for zen.theme.content-element-separation being 0 in 'about:config' for different Zen features

🐞 Bug Fixes

Fixed Glance occasionally acting weird when cycling tabs with the keyboard

Fixed various animations and generic issues in compact mode

Fixed an incorrect URL bar height when exiting from full-screen videos

Fixed the sidebar being visible in compact mode when opening the floating URL bar

Fixed 'Ctrl+T' occasionally opening on the current tab when pressing 'Ctrl+Enter'

Fixed pinned tabs disappearing after restart when splitting or duplicating them

This update includes a number of bug fixes and performance improvements!

✨ New

Updated to Firefox 137.0.2

Enabled automatic picture-in-picture by default (media.videocontrols.picture-in-picture.enable-when-switching-tabs.enabled in about:config)

Enabled bottom rounded GTK corners on Linux by default

🐞 Bug Fixes

Fixed Glance not working on 'http' or 'file' protocols (Issue #7263)

Fixed the sidebar scrollbar being innaccessible because it's too thin (Issue #7374)

Fixed unloaded tabs appearing in the 'Ctrl+Tab' switcher (Issue #7365)

Fixed split view not opening a new window when dragging the tab outside

Fixed enabling 'Restore pinned tabs to their originally pinned URL on startup' setting not working

Fixed pinned tabs doing a second 'GET' request on startup instead of using a cached version

Fixed Windows packages not containing redistributable files

Fixed 'reset tab' not appearing if only the query parameters changed on the URL (Issue #7614)

Fixed workspaces temporarily inheriting essential tabs from the source workspace a container tab was switched from (Issue #7295)

Fixed inconsistent spacing with the native Firefox sidebar on compact mode (multiple toolbars) (Issue #7118)

Fixed de-selected split views still having the pending attribute

Fixed swiping workspaces with Logitech mouse not working (Issue #7274)

Fixed a performance issue when closing multiple tabs (Issue #7507)

Fixed window controls not expanding on split views; and element separation on 0 also not expanding them (Issue #7694)

A small update to fix some issues with the new PiP feature and 'element-separation: 0'

🐞 Bug Fixes

Fixed an issue with 'element-separation: 0' disallowing access to the window controls

Disabled automatic PiP until we've built a proper settings UI panel of our own

1.12b
May 3, 2025

A nice update that brings some cool new features and fixes!

We are also excited to announce that we've joined floss.social!

In response to recent privacy concerns, we've significantly strengthened Zen's privacy measures. Previously, we only disabled telemetry, but some minimal pings were still being sent. Now, Firefox telemetry has been completely stripped out from the core.

Additionally, onboarding pages and initial Essentials favicons are now locally bundled and our website no longer relies on any external services, CDNs, nor Cloudflare services. Initial Essentials selected on startup will only be loaded when the tab is clicked on, so connections won't be established until you explicitly enter the tab. We also changed our onboarding Essentials options to more privacy and productivity focused sites.

Only critical security updates and other non-telemetry-related services remain. As a result, the number of external connections has dropped from 82 to around 20-10 — factoring in that Zen's site is loaded twice (for the welcome page and privacy policy).

Psst. With the release of Firefox 138, folders are just around the corner!

✨ New

Updated to Firefox 138.0.1

Increased privacy and reduced initial connections at startup

Added a really smooth animation when downloading files. Thanks to @BrielOtero on Github!

New, fully containerized Essentials are out! It allows having different Essentials based on your workspace's container. It can be enabled by going into 'about:preferences' -> 'Tab Management' -> 'Enable container-specific Essentials'

Automatic Picture-in-Picture won't activate if the video is muted

Added homepage button and export/import buttons to the mods page for easier access. Thanks to @Pdzly on Github!

More efficient workspace switching, by only animating what we need and warming up the tabs before switching

New looks for the URL bar!

The Essentials layout receives a nice revamp to better use the space

Added a search engine selection form for the onboarding page

Double clicking on the sidebar slider will now reset it's width

Did internal refactoring to certain components in order to comply with Firefox's new security standards.

🐞 Bug Fixes

Fixed a crash when no loaded tab is present on the ctrlTab menu

Fixed alert boxes cutting off halfway on split view (Issue #7564)

Fixed moving split view tabs into other workspaces not working (Issue #7840)

Fixed 'Paste-And-Go' always navigating in the current tab, even after ctrlT is pressed

Panels UI not rendering add-ons correctly, and overflowing outside the screen on Linux (Issue #7633)

Fixed URL bar unfocusing when pressing the newtab button

Fixed Glance freezing when opening tabs in other workspaces (Issue #7864)

Fixed duplicating tabs being stuck on 'New Tab' text (Issue #7900)

Fixed an empty newtab opening when closing with a pinned tab selected on the previous session

This is just a small update to fix some bugs with the previous version. Please check out the release notes for 1.12b for more details.

🐞 Bug Fixes

Fixed sidebar in collapsed and compact modes being too small

Fixed jitter on compact mode on Windows

Fixed duplicate new tabs opening when having 'replace-newtab' disabled

Fixed custom colors being irremovable

Just a small update to fix some bugs and introduce some minor features!

✨ New

Added a new preference in about:preferences -> 'Startup'. Continue where you left off allows you to keep browsing from your last selected tab, whether it's pinned or not

Enabled 'auto theme' by default, which will automatically switch between light and dark mode based on the system theme. Only new installs and profiles will have this enabled (you can enable it in 'about:addons' -> 'themes')

Added a nice UI for 'switch tab' on the URL bar, thanks to @ferrocyante on GitHub!

(experimental) MacOS users will now restore tabs correctly, even after closing all windows instead of quitting the app

Better toast notifications and added an 'opened background tab' toast if compact mode is enabled

🐞 Bug Fixes

Fixed Essentials/pinned tabs not loading if 'reset to default on startup' is enabled

Fixed the context menu allowing the user to remove the last workspace

Fixed animations for Glance's buttons and unfocusing the URL bar, as well as enter/exit animations for compact mode

Fixed accessibility issues with the URL bar in light mode. Also centered the URL bar to the screen

Fixed some issues with right side tabs on collapsed mode

Fixed some issues with importing mods

🐞 Bug Fixes

Fixed the toast notifications not aligning when tabs are on the right

Fixed restoring previous tabs not working in some cases

Disabled search suggestions by default. Can be enabled again in 'about:preferences' -> 'Search'

Fixed compact mode always showing that a background tab has been added

Other small fixes and improvements

✨ New

Updated to Firefox 138.0.3

For MacOS users, dragging tabs and changing the texture for the workspace's background now provides haptic feedback (zen.haptic-feedback.enabled)

The 'copy current url' toast now displays a share icon (only on Windows and MacOS)

The URL bar can now search through renamed pinned tabs

🐞 Bug Fixes

Fixed issues with toast notifications not being hidden after a timeout and displaying when they shouldn't

Fixed MacOS close buttons being misaligned on the collapsed sidebar (Issue #7129)

Fixed the download animation appearing on all windows (Issue #8247)

Fixed Glance controls appearing on the wrong side when 'Tabs on the Right' was used (Issue #7910)

Fixed various issues with the URL bar on double toolbar mode

Fixed some issues with restoring the previous session

🐞 Bug Fixes

A weird shadow with the URL bar.

'All tabs' button appearing unexpectedly.

This new release updates Firefox to the latest version which fixes various security issues.

🔒 Security Changes
✨ New

Updated to Firefox 138.0.4

Better compact mode support for multiple toolbars.

🐞 Bug Fixes

Compact mode showing 'tab opened in the background' when having multiple toolbars.

An issue with GTK popups having low contrast.

Tabs not being able to unload after closing Glance.

An issue with updating invalid mods clearing the mod list.

An accessibility issue with the scrollbar on the sidebar.

Opening a new link in split view while having Glance open.

'All tabs' menu not showing any text when collapsed toolbar is enabled.

🚧 Breaking Changes

The customizable UI on the tab strip (located between the top and bottom icons) has been discontinued due to the way the internal layout functions—buttons placed in that area are automatically removed. While it’s possible to re-enable this feature by doing some hacky CSS, doing so may lead to instability or breakage, and is not officially supported.

✨ New

A much better transition between workspaces gradients.

🐞 Bug Fixes

Window control buttons not appearing on hover.

Double-clicking on the tab strip not opening a new tab.

Dragging tabs with Glance open acting weird.

✨ New

Private windows will now have 'private spaces'

🐞 Bug Fixes

Issues with custom colors on the gradient generator.

Site notifications not appearing unless hovering on the top part of the screen.

Some issues when using Glance and split view simultaneously.

This update includes several fixes, security updates, and a few improvements! We've bundled the updates for Firefox 139.0 and 139.0.1 into the same release. Since Firefox 139.0 had some rendering issues on Windows for NVIDIA users, we waited an extra day to release this update to ensure the issues were resolved.

🔒 Security Changes
✨ New

Updated to Firefox 139.0 and 139.0.1.

Automatic updates for mods.

Automatic tab unloader now uses Firefox's default tab discarding feature, which is based on time and memory usage, instead of the previous time-only method.

Improved performance for rendering rounded corners in the webview.

Enabled the browser to prioritize more important processes when Zen is under memory pressure on macOS.

The context menu item 'Search text on search engine' now opens Glance instead of a new tab.

💎 Improvements

Unloaded tabs won't be dimmed unless they are explicitly discarded (browser.tabs.fadeOutUnloadedTabs).

Context menu icons have been removed to provide a cleaner look and feel.

🐞 Bug Fixes

Pinned- and essential tabs not restoring their icons correctly.

Other issues with split views and Glance.

Compact mode should now work correctly after closing the window — please let us know if you still experience issues.

🐞 Bug Fixes

An issue with migration that led to unexpected behavior on startup, leading to some services being unavailable.

Unloaded pinned tabs using the wrong favicon instead of the cached one.

Gradients not showing when restoring multiple windows at once

Restoring previously closed pinned tabs being on the wrong container.

1.13b
Jun 13, 2025

This update includes overall fixes, stability and a new way to manage spaces

🔒 Security Changes
✨ New

There's a new way to manage spaces, which brings a more intuitive and user-friendly experience

Updated to firefox 139.0.4

Added support for google safebrowsing for better security

Collapsed toolbar gets a slight UI redesign

🐞 Bug Fixes

Fixed issues related to glance and split view

Fixed performance issues and high GPU usage for some users

Other small fixes and improvements

🚧 Breaking Changes

Customizable UI buttons at the bottom has been reset to a new default state

🐞 Bug Fixes

Small fixes from the previous release.

✨ New

Show spaces when right clicking on the workspace indicator

1.14b
Jun 29, 2025
🔒 Security Changes
✨ New

Upgraded to Firefox 140.0.2.

Introduced a refreshed look and feel for the color picker.

Added automatic dark/light mode detection based on the browser's background.

Improved gradient rendering to reduce dithering artifacts.

Moved mods to a C++ backend for enhanced performance, stability, and caching.

Made workspace swiping smoother with animated background transitions and improved responsiveness.

Simplified the compact mode toggle: now a single button replaces the previous submenu in single-toolbar setups.

The Add-ons button can now be removed from the toolbar.

💎 Improvements

Legacy customization styles are now disabled by default for new users unless a userChrome.css file is present.

New user profiles now have container-specific essentials enabled by default.

🐞 Bug Fixes

Fixed visual twitching when cancelling a drag-to-split operation.

Resolved an issue with tab switching when tabs overflow the toolbar.

🐞 Bug Fixes

Fixed a crash with third-party tools.

🐞 Bug Fixes

Fixed an issue when disabling mods.

🐞 Bug Fixes

Improved default colors for the color picker.

Fixed various issues in various places.

🐞 Bug Fixes

The color picker turning colors into a white background.

🐞 Bug Fixes

Fixed compact mode turning off when restoring windows.

Fixed accessibility issues when using custom color.

Lots of performance improvements and nice stability fixes!

🔒 Security Changes
✨ New

Updated to Firefox 141.0.

Improved accent color detection, making elements such as toasts more vibrant.

Added a better custom color picker (experimental UI, might change).

Improved and optimized the Glance animations and UI.

WebGPU is now enabled by default on Windows.

A more native feel to Windows 11 window buttons.

🐞 Bug Fixes

Image caching and scroll optimization issues.

A bug where adding or removing colors in the color picker would make the UI white.

On Linux, Zen uses less memory and no longer requires a forced restart after an update has been applied by a package manager.

'Copy calculation' in the URL bar not working.

🐞 Bug Fixes

Fixed an issue where changing workspaces doesn't change tabs.

Fixed native Windows caption buttons displaying the grid display dialog even if it's hidden.

🐞 Bug Fixes

Fixed the Glance cancellation button not working.

Fixed the URL bar having multiple arrows when switching tabs.

🐞 Bug Fixes

A regression with closing Glance that appeared in previous versions.

✨ New

New windows should be opening faster now.

Updated to Firefox 141.0.2.

🐞 Bug Fixes

Fixed hovering over the tabs in compact mode having weird behavior on windows.

Just a small update since we are focusing on folders! Now on Twilight.

✨ New

Updated to Firefox 141.0.3.

🐞 Bug Fixes

Fixed the download having poor visibility.

1.15b
Aug 25, 2025

You asked, we delivered: Folders have arrived in Zen! Organise your browsing the way you want. Create a folder from the sidebar with the plus (+) button, give it a name, then drag and drop tabs inside. Right–click a folder to rename or delete it, and rearrange them anytime to keep projects or saved links in order. Folders have been one of the most requested features since Zen’s launch, and they’re finally here.

If you wan't us to keep doing cool things like these, please consider donating!

🔒 Security Changes
✨ New

Folders!

Updated to Firefox 142.0

Implemented monochromatic icons for spaces, folders, etc.

Added a small animation when updating Zen.

💎 Improvements

Third-party domains now open in their own tabs when opened on pinned and essential tabs.

Added a more native feel for Windows users.

New profiles or resetting to default shortcuts will now have next/previous workspace assigned as Ctrl + Alt + LEFT/RIGHT, toggle compact mode using Ctrl + S and save page as Ctrl + Alt + S

Compact mode with no browser padding will now have a separation between the sidebar and the window edge

🐞 Bug Fixes

Resolved compact mode twitching issue when hovering the URL bar.

Pinned tab titles not showing on the URL bar search results.

A performance issue with pinned tabs pre-loading at startup.

✨ New

Updated to Firefox 142.0.1.

🐞 Bug Fixes

Fixed issues with the folder context menu not working on collapsed mode

Fixed tab becoming invisible on some occasions when collapsing active folders

Fixed pinned tabs / folders not initializing correctly on some occasions

🐞 Bug Fixes

Fixed an issue where folders couldn't be renamed on double toolbar

✨ New

Wheel clicking on a pending pinned tab will now close it.

💎 Improvements

'Split Tabs' context menu item won't show if it's not applicable.

🐞 Bug Fixes

Fixed compact mode turning off after startup.

Fixed memory issues when creating new folders. (Issue #10145)

Fixed startup freezes on some systems.

Fixed hovering over the urlbar making the compact mode sidebar appear

This release is mostly important for Windows users as the previous certificate will expire soon.

✨ New

Added a 'tada' folder icon

Added faster tab open animations, and a new tab close animation

💎 Improvements

The Windows build is now signed with a new certificate since the previous will expire soon.

🐞 Bug Fixes

Fixed using the scrollbar on the sidebar, moving the window instead of scrolling.

🐞 Bug Fixes

Fixed potential crashes on flatpak and updated flatpak dependencies.

Fixed double clicking on the empty space of the sidebar not making a new tab.


illustrationillustrationillustration