I've given up on this.
There are some great ideas, but the usability is abysmal, development has been basically non-existant for years.

- The extension constantly asks you which container to use even when its the first time you've gone to a website in a specific container or even when you specifically ask it to use a certain container.
- Its also incredibly annoying to try and use the same domain in two containers, in contrast to what the addon claims, because the extensions keeps panicking about which to open and tends to override your current container choice at will.
- Its impossible to migrate your addon config to another profile or device, only the container names can be backed up.

I've used it for years and have found it to be more trouble than its worth. Rather than having a simple all-in-one profile swapper it is more akin to just colored tabs that break websites, make it impossible to use the same domain in multiple containers without hassle and doesn't respect your explicit choice of container half the time.