Group Name Display

[50-sys]

First of all, I want to thank you for that lovely extension.

One thing I wish to suggest is being able to see the name of the current group somewhere around the toolbars or near the url bar etc. That would be so useful at least in the case of my using since window titles might not be so prominent all the time.

[nekohayo]

This is a duplicate of #319 and #10; as such, please close your ticket in favor of those.