I very much wanted this plugin to work - I do different work on my different computers and want a different "Bookmarks Toolbar" on each one. It *mostly* worked between my Mac and Windows boxes, but never quite worked with my Linux machine. Not sure how/why (seems pretty straightforward), but it would move bookmarks between groups or duplicate them. I backed up beforehand (as suggested) and never really lost anything, but I'm amazed I didn't. Guessing there's something buggy with the way the groups are indexed and/or synced between computers. Maybe I need to shut down all my browsers but one, install, setup, sync and then try installing on the others.

Deletes all your bookmarks when you swap to a different computer.

EDIT: Doesn't seem to be a way to reply to reponses, so I'll just edit my review. No, in this case your extension deleted my book marks. I swapped from one bar to another, but both bars were empty and so I lost all the bookmarks on both my bars I had setup. I looked everywhere in my bookmark manager but they were not in the switcher folders. Luckily I had a back up, but this is very inconvenient.