Is Messenger for Facebook™ safe?

Clean risk

Adds a Facebook Messenger sidebar to the browser for chatting while browsing.

This extension opens a Messenger sidebar on the right side of the Firefox interface. After you log in to Facebook, it lets you view friends’ online status and chat without leaving your current browsing session. Its permissions include access to cookies, tabs, web requests, context menus, storage, all websites, and barisderin.com pages.

Baris DerinFirefox Add-ons
0Risk

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

Publishers can request a review.

Where it sends data

Destinations our analysis observed Messenger for Facebook™ contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.

  • barisderin.com

    Messenger for Facebook™ sends data to barisderin.com. 6 other extensions we have analysed send data here.

  • Facebookwidely used

    Messenger for Facebook™ sends data to Facebook. Named as a recipient by 51 other extensions we have analysed.

Updated 15 October 2026amo-412584