zen-browser

zen-browser/desktop

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57 good first / help-wanted issues · JavaScript · last activity Jul 6, 2026

43.2K stars 1.6K forks 43.2K watchers JavaScript Mozilla Public License 2.0
firefox firefox-based firefox-browser zen-browser
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57 Open Issues Need Help Last updated: Jul 6, 2026

Open Issues Need Help

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Expanding Glance from an Essential Tab after Switching Spaces Creates a Bugged Tab 1 day ago
component: glance platform: linux platform: macOS platform: windows good first issue
zen-browser/desktop
43.2K

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JavaScript
#firefox#firefox-based#firefox-browser#zen-browser
Ctrl+L shortcut does not switch floating URL bar to current tab's URL when triggered after Ctrl+T 3 days ago
component: keyboard-shortcuts platform: linux good first issue
zen-browser/desktop
43.2K

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JavaScript
#firefox#firefox-based#firefox-browser#zen-browser
Captive portal notification disappears in compact mode 3 days ago
component: compact-mode platform: linux good first issue
zen-browser/desktop
43.2K

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JavaScript
#firefox#firefox-based#firefox-browser#zen-browser
Sidebar position set to top after exiting fullscreen YouTube video 5 days ago
Bug component: tabs platform: linux platform: macOS platform: windows good first issue
zen-browser/desktop
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JavaScript
#firefox#firefox-based#firefox-browser#zen-browser
Name of a Boost is cropped 6 days ago
component: other platform: windows good first issue
zen-browser/desktop
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#firefox#firefox-based#firefox-browser#zen-browser
Sidebar theme will shift when hovering in compact mode with tabs on right enabled 8 days ago
component: tabs platform: linux platform: macOS platform: windows good first issue
zen-browser/desktop
43.2K

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JavaScript
#firefox#firefox-based#firefox-browser#zen-browser
Right sidebar cannot be resized below a minimum width unlike left sidebar 13 days ago
component: customizable-ui-toolbars platform: windows good first issue
zen-browser/desktop
43.2K

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JavaScript
#firefox#firefox-based#firefox-browser#zen-browser
Space Routing Settings regex are case sensitive 15 days ago
component: workspaces platform: macOS good first issue
zen-browser/desktop
43.2K

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#firefox#firefox-based#firefox-browser#zen-browser
Can't interact with MacOS traffic lights 15 days ago
component: url-bar platform: macOS good first issue
zen-browser/desktop
43.2K

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JavaScript
#firefox#firefox-based#firefox-browser#zen-browser
Bottom parts of g, p, q, and y are clipped in menus [1.22.2b] 16 days ago
component: customizable-ui-toolbars platform: windows good first issue
zen-browser/desktop
43.2K

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#firefox#firefox-based#firefox-browser#zen-browser
[L10n][TR] Accesskey collisions in bookmark and tab context menus 25 days ago
component: localization platform: windows good first issue
zen-browser/desktop
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#firefox#firefox-based#firefox-browser#zen-browser
Tab preview has incorrect border radius about 1 month ago
component: tabs platform: windows good first issue
zen-browser/desktop
43.2K

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#firefox#firefox-based#firefox-browser#zen-browser
Light theme renders fully transparent with `zen.widget.linux.transparency` - dark UI text is unreadable over dark backgrounds about 1 month ago
component: customizable-ui-toolbars platform: linux good first issue
zen-browser/desktop
43.2K

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#firefox#firefox-based#firefox-browser#zen-browser
UI glitch when rapidly switching Sidebar/Tabs layout options in Settings about 1 month ago
Bug component: settings platform: windows good first issue
zen-browser/desktop
43.2K

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#firefox#firefox-based#firefox-browser#zen-browser
Ctrl+Shift+DigitOrSymbol keybinds don't work about 1 month ago
Bug component: keyboard-shortcuts platform: linux good first issue
zen-browser/desktop
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Status panel and Glance buttons use dark-theme colors on light themes about 1 month ago
component: customizable-ui-toolbars platform: macOS good first issue
zen-browser/desktop
43.2K

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Download manager theme don't let you see the progress bar when unselected about 2 months ago
component: customizable-ui-toolbars platform: linux good first issue
zen-browser/desktop
43.2K

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#firefox#firefox-based#firefox-browser#zen-browser
Custom theme color anomaly about 2 months ago
Bug component: mods-themes platform: macOS good first issue
zen-browser/desktop
43.2K

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#firefox#firefox-based#firefox-browser#zen-browser
Custom icons for tabs without favicons not saving about 2 months ago
Bug component: workspaces platform: linux platform: macOS platform: windows good first issue
zen-browser/desktop
43.2K

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Copy: "New blank window" in "…" menu is not Title Case 2 months ago
Bug component: localization platform: macOS good first issue
zen-browser/desktop
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#firefox#firefox-based#firefox-browser#zen-browser
Top bar gets stuck opened when warn on close is turned on 2 months ago
Bug component: customizable-ui-toolbars platform: linux good first issue
zen-browser/desktop
43.2K

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#firefox#firefox-based#firefox-browser#zen-browser
"Rename Folder" option unavailable in collapsed toolbar layout 2 months ago
Bug component: tab-folders platform: linux good first issue
zen-browser/desktop
43.2K

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Windows: Scroll bar in tab list causes layout shift when always show scroll bars is enabled 2 months ago
Bug component: tabs platform: windows good first issue
zen-browser/desktop
43.2K

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JavaScript
#firefox#firefox-based#firefox-browser#zen-browser
Closing a Split Tab in one Zen window causes other windows' tabs to change to the remaining tab 3 months ago
Bug platform: linux platform: macOS platform: windows component: split-view good first issue
zen-browser/desktop
43.2K

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JavaScript
#firefox#firefox-based#firefox-browser#zen-browser
Non-intuitive shortcut mapping 3 months ago
Bug component: keyboard-shortcuts platform: macOS good first issue
zen-browser/desktop
43.2K

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#firefox#firefox-based#firefox-browser#zen-browser
Switching spaces bug when creating a new space, same as prior space 3 months ago
Bug component: customizable-ui-toolbars platform: windows good first issue
zen-browser/desktop
43.2K

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JavaScript
#firefox#firefox-based#firefox-browser#zen-browser
AI controls not shown in settings by default but only when searching for them 4 months ago
Improvement component: settings platform: linux platform: macOS platform: windows good first issue
zen-browser/desktop
43.2K

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JavaScript
#firefox#firefox-based#firefox-browser#zen-browser
Workspace switch problem 4 months ago
Bug component: workspaces platform: windows good first issue
zen-browser/desktop
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The toolbar breaks when changing the browser layout 4 months ago
Bug component: customizable-ui-toolbars platform: linux platform: macOS platform: windows good first issue
zen-browser/desktop
43.2K

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#firefox#firefox-based#firefox-browser#zen-browser
"Pin Tab" missing in keyboard shortcut settings 4 months ago
Bug platform: linux platform: macOS platform: windows good first issue
zen-browser/desktop
43.2K

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JavaScript
#firefox#firefox-based#firefox-browser#zen-browser
Holding ⌥ on Mac to select the text inside a link is broken 5 months ago
Bug stale component: other platform: linux platform: macOS platform: windows good first issue
zen-browser/desktop
43.2K

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#firefox#firefox-based#firefox-browser#zen-browser
Missing translations 5 months ago
Bug component: other platform: linux platform: macOS platform: windows good first issue
zen-browser/desktop
43.2K

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JavaScript
#firefox#firefox-based#firefox-browser#zen-browser
"Close Pinned Tab Shortcut Behavior" ignored for "Places" tab 5 months ago
Bug stale component: tabs platform: windows good first issue
zen-browser/desktop
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#firefox#firefox-based#firefox-browser#zen-browser
Bookmark menu shows up in wrong place, and its entries' context menu has weird layout problem 5 months ago
Bug stale component: bookmarks platform: linux good first issue
zen-browser/desktop
43.2K

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#firefox#firefox-based#firefox-browser#zen-browser
Tab preview text illegible in front of light background 5 months ago
Bug stale component: tabs platform: macOS good first issue
zen-browser/desktop
43.2K

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#firefox#firefox-based#firefox-browser#zen-browser
Toolbar Download and share button icons are not at consistent sizes 5 months ago
Bug component: customizable-ui-toolbars platform: linux platform: macOS platform: windows good first issue
zen-browser/desktop
43.2K

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JavaScript
#firefox#firefox-based#firefox-browser#zen-browser
Full screen mode not working in YouTube while using Glance mode 5 months ago
Bug component: glance platform: linux platform: macOS platform: windows good first issue
zen-browser/desktop
43.2K

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JavaScript
#firefox#firefox-based#firefox-browser#zen-browser
There's two shortcuts for New Blank window in settings 5 months ago
Bug component: keyboard-shortcuts platform: linux platform: macOS platform: windows good first issue
zen-browser/desktop
43.2K

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#firefox#firefox-based#firefox-browser#zen-browser
Allow changing interface font for generic Linux tarball 5 months ago
Feature component: other platform: linux good first issue
zen-browser/desktop
43.2K

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#firefox#firefox-based#firefox-browser#zen-browser
Dialog UI layout overflow 6 months ago
Bug component: customizable-ui-toolbars platform: macOS good first issue
zen-browser/desktop
43.2K

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JavaScript
#firefox#firefox-based#firefox-browser#zen-browser
Moving Essential Tab to New Window removes it from Essentials 6 months ago
Bug component: tabs platform: linux platform: macOS platform: windows good first issue
zen-browser/desktop
43.2K

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#firefox#firefox-based#firefox-browser#zen-browser
Permission popup doesn't show up in collapsed mode 6 months ago
Bug component: compact-mode platform: linux platform: macOS platform: windows good first issue
zen-browser/desktop
43.2K

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#firefox#firefox-based#firefox-browser#zen-browser
Multi selection looks inconsistent on split views 6 months ago
Bug platform: linux platform: macOS platform: windows component: split-view good first issue
zen-browser/desktop
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#firefox#firefox-based#firefox-browser#zen-browser
UI Scaling/Layout Glitch when switching between Windows 11 Workspaces with Split View active 6 months ago
Bug platform: linux platform: macOS platform: windows component: split-view good first issue
zen-browser/desktop
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`about:debugging` wrong connected browser warning 7 months ago
Bug component: other platform: linux platform: macOS platform: windows good first issue
zen-browser/desktop
43.2K

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Multiple inconsistancies with private window theme 7 months ago
Bug component: mods-themes platform: linux platform: macOS platform: windows good first issue
zen-browser/desktop
43.2K

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#firefox#firefox-based#firefox-browser#zen-browser
`Enable compact mode` in context menu is alwaly checked regardless of in compact mode or not 7 months ago
Bug component: compact-mode platform: windows good first issue
zen-browser/desktop
43.2K

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Rename "Split ${N} tabs" to "Join ${N} tabs" and "Split -1 tabs" to "Split out tab" 7 months ago
Improvement platform: linux platform: macOS platform: windows component: split-view good first issue
zen-browser/desktop
43.2K

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#firefox#firefox-based#firefox-browser#zen-browser
Notification can't be closed when tabs are on the right side (mailto notify) 7 months ago
Bug component: tabs platform: macOS good first issue
zen-browser/desktop
43.2K

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Tabs and essentials easy to accidentally drag off 7 months ago
Bug component: tabs platform: linux platform: macOS platform: windows good first issue
zen-browser/desktop
43.2K

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#firefox#firefox-based#firefox-browser#zen-browser
Unable to go full screen when in split view 8 months ago
Bug component: tabs platform: linux platform: windows good first issue
zen-browser/desktop
43.2K

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#firefox#firefox-based#firefox-browser#zen-browser
Loaded tabs are faded out in new windows 8 months ago
Bug component: tabs platform: linux platform: macOS platform: windows good first issue
zen-browser/desktop
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using my GoBack mouse button switches workspaces 8 months ago
Bug component: keyboard-shortcuts platform: windows good first issue
zen-browser/desktop
43.2K

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JavaScript
#firefox#firefox-based#firefox-browser#zen-browser
Top toolbar is shown when hovering the top side of the screen in "single toolbar" layout with "compact mode" 8 months ago
Bug component: customizable-ui-toolbars platform: linux platform: macOS platform: windows good first issue
zen-browser/desktop
43.2K

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#firefox#firefox-based#firefox-browser#zen-browser
Truncated folder name in the search inside folders feature 8 months ago
Bug component: tab-folders platform: linux good first issue
zen-browser/desktop
43.2K

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#firefox#firefox-based#firefox-browser#zen-browser
When in fullscreen(F11) bookmarks bar disappear 8 months ago
component: bookmarks platform: windows good first issue
zen-browser/desktop
43.2K

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duplicate tab shortcut missing 8 months ago
Bug stale component: tabs platform: macOS good first issue
zen-browser/desktop
43.2K

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JavaScript
#firefox#firefox-based#firefox-browser#zen-browser