Review for Menu On Top (SuperMenu Avatar) by Mark B
Rated 4 out of 5 stars
Can we get a version that's compatible with FF 61.0.1 ???
This review is for a previous version of the add-on (1.9).Sorry but Mozilla closed the door to this type of modification. You can't do this with Web extensions. You're best bet is switching to Waterfox like I did.
The extension was working until Firefox 57 then they decided to blow up legacy extensions and close many possibilities for us Addons developers.
To create your own collections, you must have a Mozilla Add-ons account.