Tab Group Collections by roelleor

Tab Group Collections adds a collection layer on top of Firefox’s native tab groups, so related groups can stay organized together instead of living in one flat list.

Create named collections, pin the ones you use most, and manage everything from a dedicated sidebar. You can rename collections and groups, drag groups to reorder them, move groups between collections, create new groups directly, and delete groups or collections when they are no longer needed.

The extension also keeps saved groups available for later reopening. Open a full collection, open just the missing groups, or reopen a single saved group when you need it again. A compact toolbar popup provides quick access to your collections without opening the full sidebar.

Tab Group Collections is built on Firefox’s native tab group support rather than replacing it. All state is stored locally in Firefox. No external service, sync backend, or tracking is involved.