v1.18.1b •
GitHub Release
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Workflow run
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January 24, 2026

If you encounter any issues, please report them on the issues page.

    Fixed
    Fixed an issue with new profiles not properly migrating the session files

    Change
    Changed the default keyboard shortcut for a new blank window to cmd+shift+N (for mac), ctrl+shift+N (for linux/windows)

v1.18b •
Firefox 147.0
•
GitHub Release
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Workflow run
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Compare changes
January 18, 2026

This update includes window sync and other nice improvements! Window sync is a way to keep your windows organized across multiple monitors. If you want a blank window, you can do so by using opt+cmd+N (for mac), ctrl+alt+N (for linux) and alt+N (for windows). Enjoy!

You can read more about window sync in our documentation here

    Fixed
    Improved startup time when restoring large sessions.
    Fixed
    Improved rendering for background gradient rendering / mixing when using three color gradients.
    Fixed
    Fixed split views resetting their layout / sizes on startup. Issue #9978
    Fixed
    Fixed pinned tabs losing their icons when being unloaded or at startup.
    Fixed
    Fixed sub-folders separating from their parent folders when restoring in some cases.
    Fixed
    Fixed a possible memory leak with mods.

    Added
    Updated to Firefox 147.0 and 147.0.1
    Added
    Merged window syncing! Now, when you open multiple windows of Zen, they will stay in sync with each other. Changes made in one window will automatically reflect in all other open windows. (Experimental, some features such as glance still can't sync yet.)
    Added
    Session restore now remembers which space each window was in.
    Added
    Closing a tab will now focus the last accessed tab instead of the tab to the bottom
    Added
    Tabs can now have custom icons (set via right-click context menu).
    Added
    Implemented new tab drag-and-drop system, making it easier to rearrange tabs specially when multiple layers of folders are involved.
    Added
    You can now collapse all pinned tabs by clicking on the space name below the essentials.
    Added
    Before, only pinned tabs could be renamed; now, any tab can be renamed via right-click context menu or double-clicking the tab title.
    Added
    New MacOS profiles will now have 'switch to N space' keyboard shortcuts filled by default (control+number).
    Added
    Improved native menu bar integration on MacOS (and Windows/Linux if applicable), adding a 'Spaces' menu item for easier access to space-related actions.
    Added
    Enabled de-cluttering preference for context menus.
    Added
    WebGPU support is now enabled for devices with Apple Silicon processors on all supported macOS versions.
    Added
    Improved video playback performance on systems with AMD GPUs by enabling zero-copy playback for hardware-decoded video where supported, bringing them to parity with Intel and NVIDIA GPUs.
    Added
    Zen now supports the Safe Browsing V5 protocol and is migrating from Safe Browsing V4 to the local list mode of Safe Browsing V5 protocol.
    Added
    Added an 'Essentials DnD Promo' card, shown when dragging a tab to the top of the sidebar if there are no essentials.