really needs to be a built in feature, love it!

It is an excellent addon. I like the way each URL can be added to different containers. It is very simple. Maybe the next step is the way to make a backup or sync.

I really appreciate this plugin. Could you please allow us to backup our settings ("always open this site in ..."). Thanks again!

Amazing.

No more having to juggle accounts on Gmail or outlook or SharePoint or etc.
Perfect for those of us that are contractors and work for many different companies.

Love this. BTW, does it sync?

I think this is novel and quite a good one.

Excellent.

Very well done. By far the best extension I've ever used. Does exactly what it needs to do. This extension is one of the main reasons I no longer use Chrome. Finally I can have multiple YouTube accounts signed in instead of having to pull up a private browsing window. The features it add should be added to regular Firefox. My suggestion is that they add the ability to have a default container that all tabs open in, and be able to set up multiple containers that begin already open when you launch Firefox.