Fix: new tabs in workspace windows not assigned to container

Opening a new tab (clicking the + button) in a workspace window did not assign the tab to the workspace container. The root cause was that Firefox creates new tabs with the URL about:newtab, which was incorrectly treated the same as privileged Firefox pages (like about:preferences) and skipped without container assignment. Fixed by explicitly recognising about:newtab in the 50ms poll and onUpdated handler and reassigning it immediately to a blank tab in the correct container.

Bug fix: Firefox settings and other special pages no longer replaced by blank tab

Previously, opening a privileged Firefox page (such as Settings, Add-ons Manager, or Task Manager) from within a workspace window caused the extension to replace it with a blank tab, because the page cannot run inside a container. The extension now detects these about: pages and leaves them untouched. The page opens normally in the workspace window. These tabs are not saved as part of the workspace snapshot.

Lazy-load workspace tabs to reduce memory usage

When reopening a workspace, all tabs except the previously active one are now created in an unloaded (discarded) state. They appear in the tab bar with their saved title but do not consume memory until clicked. The tab that was active when the workspace was closed loads immediately. This significantly reduces RAM usage for workspaces with many tabs.

Fixed a race condition that caused URLs opened from external applications (e.g. email clients, Slack, terminal) to be lost. When Firefox created the tab, the 50ms poll sometimes fired before Firefox set the real URL, causing the tab to be replaced with a blank page. The fix keeps the tab alive and lets the existing event listener catch the URL when it arrives, with a 2-second safety timeout as a fallback.

1) Minor UI improvement to workspace list layout to keep each workspace row more compact

2) Bug fix: FF crash recovery — prevents duplicate workspace windows and potentially tab data loss after Firefox restarts and automatically reopens windows (because those recovered windows the extension does not recognize as its workspaces windows)

3) Bug fix: opening a workspace no longer stops partway through if a saved tab has a URL that cannot be opened inside a Firefox container (like file:///...)

4) Bug fix: tabs that are stuck in a loading state (e.g. because a server is unavailable) are now correctly saved with their URL instead of as about:blank

Privacy & data collection policy update.

• Removed the optional browsingActivity data collection declaration from the manifest — the extension does not collect or report browsing activity in any form.
• Updated the Privacy & Data section in the documentation to clarify exactly what data is stored, where it is stored, and that the developer has no access to it. The text now explicitly states that Firefox Sync is a Mozilla feature and not operated by this extension, and that the cookies permission is used solely for Firefox container functionality.

No functional changes in this release.

This release focuses on UI polish, reliability fixes, and improved workflow when managing workspaces.

What's new

• Native Firefox container icons — The workspace icon picker now uses the same icons as Firefox's built-in container tabs (briefcase, fingerprint, cart, vacation, and more). Color values also match Firefox's official palette for visual consistency.
• Workspace icon applied to containers — When creating or opening a workspace, the extension now correctly applies your chosen icon and color to the Firefox container. Previously the container always used a default icon.
• Import respects workspace icon — When importing tabs into a new workspace from a backup or another device, the workspace icon and color are now correctly preserved.
• Scrollable workspace list — The popup now properly scrolls when you have many workspaces, instead of growing beyond the screen.
• Search/filter workspaces — A filter field appears automatically when you have 5 or more workspaces, letting you quickly find what you need.
• Reorder workspaces — Up/down buttons on each workspace card let you rearrange the list. The order is saved per device.
• Cleaner workspace cards — Removed the "Active / Sleeping" text badges; the blue left-border accent on active workspaces is sufficient at a glance.
• Dynamic modal sizing — The Create/Edit workspace dialog no longer appears cramped.

The workspace edit panel now lets you change the container color and icon alongside the name — previously only the name could be changed.

The default container icon has been changed from fingerprint to circle, which is more neutral and less likely to conflict with your personal icon choices.

Updated README
- description of Backup & Restore
- description for sync
- added Privacy & Data section that clearly states what data the plugin processes, stores and how and where the data is transmitted

Updated manifest
- changed browser_specific_settings.gecko

Version 1.6.2 — Release Notes

This release rebuilds the sync architecture to eliminate workspace conflicts when using Firefox Sync across multiple devices.

Conflict-free multi-device sync
- Each device now maintains its own independent workspace snapshots.
- Devices no longer overwrite each other's data through Firefox Sync.

New in Backup & Restore
- Give your device a recognisable name in the new "This Device" section
- "Other Devices" shows workspaces synced from your other Firefox Sync devices
- Pull selected workspaces from another device using the existing review panel

Migration from v1.5.3
- Existing workspaces are automatically migrated on first launch — no action required and no data loss expected.
- Note: tab group names from v1.5.3 could not be recovered (they were not correctly saved in the previous version).

Initial public release on addons.mozilla.org, incorporating all recent fixes for cross-device sync reliability, correct container resolution by name, and the workspace window focus bug.