Compare software

Tab Manager Plus vs Tab Session Manager: catalog facts
Tab Manager Plus	Tab Session Manager
Free Free, with source code published on GitHub.	Free Free and open source under the MPL.
Browser extension	Browser extension
Overview of all tabs across windows Search to find a tab quickly	Automatic periodic saves mean a crash or misclick costs nothing Optional Google Drive sync moves sessions between machines
Small project maintained mainly by one developer	Cloud sync depends on a Google account Very large session histories slow the interface
Browser extension	Browser extension
Closed source	Open source
License not stated	License: MPL-2.0
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.