Excellent add-on, essential for my work!

Great extension for an extra layer of privacy or using multiple accounts of a web service within a single browser.

I like this

works well, no problems so far, good isolation

Super useful extension. Enough for me to switch to Firefox.

Great idea, but buggy when used for youtube and somewhat with google and gmail. Also some lesser problems with facebook and instagram. All these problems relate to trying to have different accounts in different containers. I caused me to come back to Mozilla Firefox. Please

This extension right here is the smoking gun that convinced me to switch over to firefox, it's insanely useful and a great quality of life tool to manage multiple accounts and no other browser has this. I can now open (for example) YouTube with 2 different accounts or in a new container without an account. They can't track between each other, so it is of course a gigantic win for privacy too.

FOSS: ~./FuckingOssomSshit

Excellent and unique feature of Firefox. Essential

Works great for me, easy to set up.