Include groups in bookmarks to restore them automatically

[llMaxll]

Is your feature request related to a problem? Please describe. Restoring a session from a different device is a tiresome task. Especially with alot of containers and frequent switching. I know that restoring the containers is a big problem regarding that, since that can't normally be safed with bookmarks.

Describe the solution you'd like The Add-On "Tabs Aside" uses a really neat solution for that. It adds a prefix to the bookmark name containing the container-id. Such a prefix looks like this: "[cs=firefox-container-14]" and is followed by the regular name. I would like STG to do that aswell and restore those groups when opening a bookmark (-folder) using the context menu.

Describe alternatives you've considered I really don't know a good alternative. The Add-On "Container Bookmarks" or the workaround used by that could maybe be an alternative, but that seem like more work.

Additional context Being able to sync the whole session with STG between devices would be an awesome feature for me. This change would be a good step in that direction and could open up more possibilities. Opening all groups at once instead of each on its own or even opening them on startup should be doable then.

[julie777]

I wonder if my proposal #911 for storing groups in bookmarks instead of localstorage would help with this.