Thank you for this extension! This extension helps me not to delete cookies and site data when the browser is closed. Though I think there are two points to improve:
1. When a new site is opened, the extension could recommend a container for this site. Will save some time instead of doing things on my own.
2. Be able to delete all the site data only from the "main" space (when no container is in place) when a browser is closed. At the moment, "Delete cookies and site data when Firefox Developer Edition is closed" flag is applied not only on the "main" space, but also drops the data from the containers (which doesn't seem correct to me).

Since Sync feature was introduced for this add-on the container flag no longer comes back with session restore.

When I use containers that were created some time ago, tabs re-open in those containers, correctly.

When I create new containers these tabs open in normal tabs when the session is trestored, so the container flag is lost for them.

Whatever may be the difference between older and newer containers - since the sync feature was added this behaviour is happening, rendering the add-on useless in my case.

This is a nice addon for multi tasking with 3 or 4 Youtube accounts

Molto utile, all'inizio sembra complicato usarla ma poi ci si abitua.

Very handy extension to create separate online profiles and keep things clean. Thank you.

It was more annoying than anything else. Once I removed it, I had to restart Firefox 3 (three) TIMES to remove it from the context menu. Once should be sufficient. Certainly not twice, and definitely not THREE times.

After having been using different browsers for awhile to get around this issue, this is the best feature I could ask for in a browser!! Great add.

Efficient, easy to understand interface and colourful outlines on tabs to visually represent what Container they are in.
5/5

One of the most useful extensions I have ever used. This could even be included by default in Firefox, since it the best way to manage different sessions efficiently.

The most useful extension never invented period !
Don't forget to activate the show in bookmark option which allow you to open the same bookmark with multiple sign-on.

Très bonne fonction pour séparer des contextes que je souhaite isoler les uns des autres. L'add-on n'est pas encore très intuitif, mais permet progressivement de programmer chaque site avec son contexte de destination.

That has been amazing as a both an individual and a family member! I have used previous solutions that never work quite as well as intended. Thank you as always Mozilla!!

Please add a way to re-order the list, & to stop adding the same old default categories to my current ones on new installs.

Needs an option to not double check that you want to open a website in a container all the time, after it's such a pain to get it added to the list in the first place. It also needs a feature to not have to navigate to a website to add it to your container list. You should be able to add them manually.