With "Firefox Multi-Account Containers" , I can have multiple gmail accounts in different tabs at the same time. I found this to be very useful. Thanks to brilliant brains behind this!

Very useful, specially for the developers.

Works well. Allows me to open the same website with different identities which is really helpful at work. Thanks!

Super easy to use, only two clicks to open another account.

Pretty cool! HELPS ME A LOT!

Gutes Addon um da Tracking ein bisschen einzuschränken.

einfach zu bedienen, funktioniert zuverlässig

Muy útil, la verdad fué la razón por la que migré a firefox a parte de su rendimiento

One of the best Firefox Add-ons, great for keeping data collecting/hoarding websites and services in check. I'm looking at you Facebook!

It's easy to use and it helps your privacy.
It's also useful if you need to work in multiple environments!

Very useful in web development!

c'est top!

amazing way for abstraction an privacy

Loving it!

Real handy to compartmentalise your different accounts and limit the all-tracking eyes of certain corporations

Davvero ottima e comoda!

Great for separating work , personal and social media stuff in different containers.
I have a different container with personal accounts and also a work container where I don't get signed in with my personal accounts. Very useful.