Auto Tab Grouper 1.0.5 - Restores compatibility with current Firefox.

Tab groups you made yourself are no longer torn apart. The extension now only dissolves groups it created itself.
The "Inherit group" setting is saved and applied again.
The settings popup works again and shows its missing icon.
Tabs are only grouped within a single window.
Renaming an automatic group makes it yours: it is left alone from then on.
German and English depending on the Firefox language, popup follows the light and dark theme.