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Tab Stash vs SessionRestore: catalog facts
Tab Stash	SessionRestore
Free Free and open source under the GPL.	Paid Paid app with a trial available.
Browser extension	macOS, Browser extension
Stashed tabs are plain bookmarks, so they sync and survive uninstalling One click clears a window without losing anything	Autosaves Safari sessions iCloud sync of saved sessions
Firefox only	Safari on macOS 14 or later only Paid after the trial
Browser extension	Downloadable app, Browser extension
Open source	Closed source
License: GPL-3.0	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 2, 2026

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