Just what I need. It will be really good if the colors are customisable, I found the provided colors are too bright and distracting.

This is a really helpful tab organizer. I really like the 'always open in container X' option and the quick opening a tab in a container by long-clicking on the plus; with those two it's easy to stay organized in containers as I visit lots of sites. It's great to be able to have different accounts open in the same browser, especially since the containers are so easy to distinguish visually.

Funktioniert wie erwartet. Mehr kann man da nicht sagen.

A melhor extensão que já usei. Possibilita navegar na internet usando várias contas e perfis diferente. Gosto dela.

Love being able to keep things sorted out into categories, and the segmentation of all the tracking data sites collect is a nice bonus. The setup process could be a bit easier (getting all your common sites sorted) and I would appreciate a way to completely disable the "default" container. Also this NEEDS sync support. Each device I use FF on I have to recategorize all my sites. Mobile support would be cool also, but I'm not living and dying for that one.

This is an excellent idea and is really useful and well implemented, after the initial few bugs that were in the beta. My only request is for the ability to re-arrange the order of the different containers, and to add a wider variety of icons ;-)

Very helpful, works like a charm. Setting up containers could be a little more intuitive sometimes, but most of the time this, too, works great.

It works and is super easy to use!

Very usefull when combine with Containers Sync. I hope it will have option to re-posittion Containers in the future. Thank you.

Muito útil! Tenho que gerenciar várias contas por conta do trabalho e o Multi-Account Containers facilita minha vida.

Could not use a browser without this now. It makes it easy to have multiple sessions logged in in a single window.

effective

Wonderful, lovely. Thanks to this, I don't have to use different browsers for different purposes. It combines great with Cookie Autodelete addon, which honors container tabs to kill cookies selectively.

Containers are more convenient than having multiple profiles in different windows. Must have for testing when you need multiple sessions to test web software. It is easy to open the same site in different container right from tab. Also there is useful feature to configure some sites to be always opened in specific container by default. This way i separate personal sites and sites for work.

I really like the extension. It would be very helpful if one could synchronize the containers via "firefox sync".

Edit:

I have managed to "sync" the container settings manuel. I installed Linux and wanted to use the same containers as before with Microsoft. For this you only have to copy two files:

1. "containers.json" (Microsoft: user - AppData - Roaming - Mozilla - Firefox - Profiles - xxxxxxxx.default)
2. The "storage.js" File from @testpilot-containers (Microsoft: user - AppData - Roaming - Mozilla - Firefox - Profiles - xxxxxxxx.default - browser-extension-data)

Close Firefox, copy and replace both files and restart Firefox. This worked for me.

I find this extension extremely useful for managing different user profiles (personal and work related) in the same browser!
Previously I had to use two different browser to keep the logins separated yet accessible. Now I can manage everything within Firefox!

Very good add-on for privacy conscious people. It's fantastic I can separate work from private things this way. Signing it to the two different accounts in the same time is also great by the way. I've got no problems with this add-on so far.

Very useful. I use it to keep my work and personal profiles separated

Perfect! No need to open different browsers to keep things separated anymore!

Goodapp

I enjoyed being able to easily separate my work tabs from the tabs I have open during break. Being able to show/hide all tabs in a container is an awesome feature too. Just wish it was easier to access.

Great extension! Killer feature indeed.
What is to be implemented at first; add containers to bookmarks. Then we could start any web service under desired account, and don't forget, which container(s) we usually prefer for this service.