Only one single problem so far Rated 4 out of 5 stars
I have ABH version 13.0.20120505 installed (latest version I think) on FireFox 16.0.1 and have no major problems in working with it.
One stupid little problem I have found: When I add a bookmark, that was already saved to another folder, the formerly saved bookmark is removed!?
I found no option in the ABH-settings to deactivate this behaviour... :(
Best regards and thank u 4 the GREAT FF-AddOn