It helps to prevent Facebook's tracking (doesn't stop, but helps stop), but it is missing a lot of Facebook URLs. It only has 3 of Facebook's URLs built in, but it is missing the URLs for threads, meta AI, whatsapp, all of the FB help and company pages, and their other projects. There is actually an issue and pull request open for this on their GitHub, but Mozilla seems to be ignoring it, and because of that, I have to take off major points, since they know about it, and someone is fixing it for them, but they still aren't doing anything about it, which is unfortunate.

Dříve fungoval bezvadně, od konce roku 2025 konec. Nemá vliv na FB.

Never downloaded the Extension. But I've always been perplexed why so many people issue 1 or two stars and NO review. Just sayin

Was extremely useful, but as of early May longer seems to work at all.

Agree with other reviewers that say it crashes messenger randomly. The problem is it will try to send a message but I'll think it went through, and the other person never gets it. Frustrating!

It seemed to be working better before. I went on FB today, ( I rarely do) and it had clearly tracked me all along.

It's been good for Facebook and Instagram. Not perfect as FB still seems to find ways to be intrusive even with multiple privacy extensions. But all of sudden I can't login to Instagram with this extension turned on. If I turn it off and login and then turn the extension back on, it closes the tab. Literally impossible to have the extension on and login into Instagram...completely defeats the purpose.

je ne sais meme pas a quoi ca sert

I'm sorry, but this extension seems the reason why i asked to changed password, causing i can't login on multiple device that using facebook container

v2.3.9 breaks a number of sites including gog because it excessively messes with the is-hidden css class, even when unrelated to facebook.

Still injects its CSS into EVERY website (without an option to disable it for localhost for example) with a habit of casually breaking many sites and not fixing for months...

Has just started adding content_script.css to all pages, modifying their appearance.

Changing body font-size of all websites

I'm sure it does a great job, but for whatever reason it started overriding some websites' fonts to the browser's default font, even in websites with no links to Facebook. Hope they fix it

Works, but to pay with Paypal I have to switch it always off....and on again...

It works great, except for the part where it can potentially cause data loss (switching a tab to or from the Facebook Container, e.g. by visiting Facebook.com from a Google.com search, causes the tab's navigation history to be discarded)
Note: it doesn't break your history menu or anything; as long as you don't clear your history, you should be able to get back to where you were by digging through that. However, it's quite tedious and for some people, Multi-Account Containers might be a better choice.