The Firefox Bookmark Sidebar already kicks butt. This Add-On takes it to a whole new level. I am seriously impressed (🡰 Initial Review - 2023-03-28).

Edit (2023-07-27). After 4 months of use now, I just keep getting blown away by how amazing this Add-On is. More often than not in reviews, through time, ratings go down. I believe this is the first time I've actively come back to a review to praise it even more. If I could give a 6 star rating, I would. Amazing job aaFn.