Care! BACKUP YOUR B.M's 1ST!

I was looking to replace an old extension that is not working with Quantum anymore: this is it. One issue that I hope will be addressed by the developer in a future release: please make folders and bookmarks names visible only when hovering over them with the cursor. Also, turning the extension on/off erases folder and bookmark names, and they all have to be reentered. Edit: there was apparently a corruption with my Firefox profile. Creating a new one from scratch resulted in the names not being erased when the extension is turned off/on.