Tab Shelf - Side panel vertical tabs

Tab Shelf brings an alternative vertical tabs experience to Microsoft Edge via the side panel.

It also includes a variety of tab management features such as selecting tabs to sleep, filtering by tab group and window, moving tabs between tab groups and windows, and editing tab group metadata.

You can also use rules to automatically group tabs based on which websites they're on.

Tab Shelf’s minimalist design and simple user experience make it feel like an integral part of Microsoft Edge.

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KEY FEATURES
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- View and manage your tabs conveniently from the side panel.
- Use rules to automatically group tabs from specific websites (or right-click on a tab and choose to group all tabs from the same site).
- Save and restore tab groups, windows, and browser sessions.
- Quickly search or filter your tabs by group, window, or whether they've got audio playing.
- Duplicate tab detection and deletion (optional).
- Sleep your tabs to save memory and energy. You can also set tabs opened in the background to sleep after a specified period of time.
- Sync your settings and grouping rules via your Google account across your other computers.
- Light and dark themes to match your browser, plus 20 accent colors to give your Tab Shelf some flair. Also includes Roomy, Comfortable, and Compact display density options.
- Choose from amongst 20 colors to differentiate your tab groups and windows.

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USAGE
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You can launch Tab Shelf in a number of ways:
1. Opening the browser side panel via the toolbar button (on the right-hand side, next to your profile button) and selecting Tab Shelf.
2. Pinning the Tab Shelf extension button to the toolbar. This allows you to open Tab Shelf in a single click.

You can also use the default keyboard shortcut to quickly open Tab Shelf:
* On Windows/Linux: Ctrl + Shift + O
* On macOS: Command + Shift + O

For a more detailed user guide, please visit:
https://tabshelf.clarencesiew.com/user-guide

Disclaimer: This extension requires at least Microsoft Edge 118 in order for side panel integration to work.

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CHANGELOG - v2026.1.2
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IMPROVEMENTS

- Improved auto-scroll behavior so Tab Shelf more reliably jumps to your active tab when the side panel opens.
- Improved scrolling to active tabs in long tab lists and collapsed groups.

BUG FIXES

- Fixed an issue where the tab group does not appear when a tab is added to it via grouping rules.
- Fixed an issue where Tab Shelf could sometimes fail to scroll to the active tab after launch or updates.
- Fixed layout overlap issues while using selection mode where the tab mute/unmute button appears over the tab selection checkbox.

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CHANGELOG - v2026.1.1
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NEW FEATURES

- Collapse or expand all tab groups at once from the Action Bar.
- New search settings to control whether matching tab groups and windows auto-expand while searching (Never / Auto-expand / Temporarily auto-expand).

IMPROVEMENTS

- Re-implemented tab list virtualization for better performance across density modes.
- Performance optimizations including favicon caching and reduced re-renders in the tab list.
- Persist tab list sorting order per window and prevent sort order resets during session updates.
- Moved Duplicate and Audible tab filter buttons back to the top bar (next to the search button).
- Duplicate tab indication now uses a favicon badge instead of changing the tab background.
- Optimistically refresh tab group collapse/expand state to avoid stale UI on some Chromium forks (e.g. Brave).
- Selection mode checkboxes for window and tab group headers now keep a consistent position.

BUG FIXES

- Fixed tab group colors not updating correctly (including color picker state).
- Fixed an issue where double-clicking a tab item could create a phantom new tab.
- Fixed "Add to Tab Tray" actions showing when Tab Tray is disabled.
- Fixed duplicate tab detection in incognito windows caused by internal URLs (e.g. `about:blank`).

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CHANGELOG - v2026.1.0
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NEW FEATURES

- Tab Tray - temporarily pin tabs to a dedicated tray for quick access across your session. Tray tabs persist until you close the tab or close the session, where the tray tabs will be moved to an archive section.
- Drag-and-drop tabs from the tab list into the Tab Tray.
- Search within the Tab Tray to quickly find tray tabs.
- Right-click context menus on Tab Tray items for quick actions.
- Pop-up mode - open Tab Shelf in a pop-up window in the browser toolbar instead of the side panel.
- Auto-scroll to active tab - automatically scroll the tab list to the current active tab when switching tabs via the tab strip or keyboard shortcuts.
- User Guide - access a built-in guide to learn about features and how to use Tab Shelf.
- New tab reposition options in tab context menus:
- Move tab(s) to another window; quickly move selected tabs to any other open window from the context menu.
- Reposition ungrouped tabs; move ungrouped tabs to the start or end of the tab list.
- Sleep/Close tabs in group; sleep or close all tabs within the same group, tabs to the left/right within the group, or other tabs in the group.
- Search in grouping rules modal - quickly find and filter rules in large rule sets.

IMPROVEMENTS

- Redesigned the Saves modal navigation with a dropdown filter menu for easier navigation between saved sessions, windows, and tab groups.
- Consolidated filter and sort controls into the search bar for a cleaner interface.
- Unified tooltip behavior across the entire extension for a more consistent experience.
- Centralized grouping rule execution via service workers for improved performance and to allow rules to run when Tab Shelf is not open.
- Improved rendering performance for tab lists and context menus.

BUG FIXES

- Fixed styling and drag-and-drop issues when dragging tabs over the window filter.
- Fixed an issue where moving tabs to a window without grouping would incorrectly group already-grouped tabs.
- Fixed a regression where exiting the duplicate tab filter would cause the user to be trapped in filtering mode.
- Fixed an issue where restoring pinned tabs to a configured URL without a protocol (e.g. `www.google.com`) would fail to navigate.
- Fixed an issue where accent color mappings would not initialize correctly on new installs or with empty storage.

DEPRECATED

- Removed the "Reduce spacing in pinned tabs compact view" setting - the compact view now uses a consistent, optimized layout.
- Removed the "Number of tabs per row in compact view" setting - the compact view now automatically adjusts based on available space.