Tab Shelf

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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).