Полезный add-on чтобы вести несколько учетных записей на одних и тех же ресурсах. Но особо полезно то, что можно разнести почту и другие личные ресурсы от известных фирм(mail/google/yandex) и другие ресурсы и не получать дурацкую рекламу.
Один большой недостаток, если есть несколько firefox бразузеров на разных компьютерах с разными языками, то после синхронизации контейнеры на русском языке и на английском перемешиваются и не понятно в каком контейнере откроется тот или иной сайт.

Lovely tools for users' privacy!

This is actually super useful in keeping a lot of my information separate from other sites. Especially facebook. I also find it useful for logging into multiple accounts on one site so that I can manage both my and my wife's info.

The Firefox containers is very exceptional when you have multiple accounts and want each account separated from a different container.

Wish the different containers and preferences could sync between different browsers!!

This plugin is great but it would be even better if we could specify the default container for a window so that each new tab would open according to the right container in the window.

Works perfectly. Can't believe I was using Private Browsing as a workaround for so many years.

Very useful add-on. One of the reasons I switched back to Firefox as I heavily use multiple accounts for one cloud based service and this allows me to log in as the different profiles without having to open new browser windows. What would be very handy though is to be able to include the icons in the tabs as well as the colours to make it easier to identify which tab is doing what and also to be able to arrange the order in the container drop down so I can group appropriate container types together when selecting opening a new container.

Grest app, works as promised. Easy to use.

Excellent extension. It became more convenient to use sites for work, for home and bank

Great addon