Is Undo Close Tab Button safe?

Clean risk

Adds a toolbar button to reopen recently closed tabs quickly.

This extension lets you undo closing a tab from a toolbar button instead of using the keyboard shortcut or browser menus. Depending on its setting, the button either reopens the most recently closed tab or shows a configurable list of recently closed tabs to choose from. It uses browser storage, sessions, tabs, and menu permissions to support these controls.

Button GuyFirefox Add-ons
0Risk
Who publishes it

Button Guy - no other listings under this identity, 1 shared hostname

What this publisher told the store about itself, and the other listings that told it the same thing.

Publisher
Button Guy

Shared hosts - 1 hostname

Hostnames hardcoded in this extension that few other listings call. That can mean one operator behind both, and it can equally mean a small shared vendor, so it is context rather than a conclusion. Hosts that many listings call are left out: they are services, not connections.

codefisher.org
Also called by 1 other listing: Print Preview Button

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

Updated 15 October 2026amo-630686