I'd be happy to change this to a 5 star if this extension worked. The extension won't activate and am using Firefox 110.01. Is there a procedure I have to follow to activate this extension after it has been enabled?

Perfect companion for multi-account container tabs.

Works as expected.
Containers with spaces in their name work as well, for example
"ext+container:name=Name of the container&url=https://duckduckgo.com"

hello sir, can u help me why my extension not show in the toolbar? In setting it say already installed and turned on, i also already check the private network allow is on. but sill didnt show up in the toolbard, i also install firefox multi account container, this extension show but not yours. i even reinstall my os fully clean, but still not solving, pls sir can u help me?

When you have multiple accounts within the same domains, this add-on works well. My use case is that I have multiple AWS accounts and Azure tenants that I work with, each in their own container.

I got the format from another reviewer and it works well:
ext+container:name=EXACT-ALREADY-CREATED-CONTAINER-NAME-GOES-HERE&url=HTTPS://BOOKMARK-GOES-HERE

Very useful, because if you tell Firefox to always open a URL in a specific container it will open all URLs of that site (!) in that container, like all google.com products (Gmail, Drive, etc.). With this add-on, you can separate, for example, Gmail (in one container) from Drive (in a different container).

Only one flaw: no favicon support. Links changed to work with this add-on get a generic symbol by Firefox: a globe (like for sites without favicons).

This makes firefox containers so much more useful. Thank you Denys H

A great productivity enhancement if you use bookmarks and have to be logged in to the same Website under different identities. i.e. "Open Shop website as customer" and "Open shop website as shopkeeper".

This is the first time I can remember writing a review of an extension. I don't use many, but I use this one every day and it does exactly what I need it to. I mostly use it in batch scripts so that I can open up a set of webpages in the right containers at the start of my work day.

One note to help fellow Windows users: you may need to specify the full path to Firefox to get this to work. On my machine that's C:\"Program Files"\"Mozilla Firefox"\firefox.exe "ext+container:name="MyContainer"&"url=https://mozilla.org'

Also, as others have mentioned, if your container name has spaces in it, swap those for %20. Some other special characters will use similar syntax. You can use this site to convert the name properly: https://www.urlencoder.org/

Thanks for making this!

Works so far, but one feature is missing on my Firefox 78.4.0esr after the installation of this add-on:

"Also it features a small popup that can be called from the icon in the address bar which provides a way to get the links or terminal commands for opening current page in any available container."