Duplicate app tabs are better than none Noté 4 sur 5 étoiles
The minor annoyance of often having this extension create multiple copies of my app tabs is a small price to pay for preventing Firefox from nuking them.
But couldn't the extension just check if an identical tab was already open before it initialized a new copy?
The initial URL of a tab could get redirected to a login page and the match would fail anyway. I haven't discovered a failsafe way to get the extension work with native FF restore behaviour. I have tried "tagging" tabs by using the attribute methods of the tabs API but the attribute values are not saved and restored by FF so this is not a solution either.