Tab Groups & Bookmarks Sync by Davide Pavan

Two-way synchronization between Firefox tab groups and bookmark folders.

When you create, rename, or delete a tab group, the corresponding bookmark folder is updated automatically — and vice versa. This lets your tab groups persist across browser restarts and gives you a browsable, searchable copy of them in your bookmarks.

Features:
- Two-way sync — tab group changes propagate to bookmarks; bookmark changes propagate to tab groups
- Conflict resolution — last-write-wins when both sides change simultaneously
- Startup reconciliation — on extension load, bookmark folders are the source of truth and tab groups are recreated to match

Privacy: This extension does not collect, store, or transmit any personal data, browsing data, or technical information. All operations remain within Firefox's local storage.