Try it on a pretend inbox
The real extension, running on a made-up Gmail page. Nothing here touches your account.
- Press Start sweep in the small UnsubSweep box.
- Watch each sender get unsubscribed, one at a time, bottom row first.
- It ends on "Swept: 4 unsubscribed, 1 skipped." Press Reset to run it again.
One sender, Example Travel, stays: it has no one-click option. This shows how the extension behaves; it isn't proof it works on your account.