A-maz-ing!! This is hands down the BEST add-on EVER! I'm one of those, 87 tabs open in 3 different windows, persons. Tabby has SAVED me. It's slightly unnerving at first when it's hard to tell if they're "really" saved, but they are! I recommend you clean up your tabs as much as possible from the drop-down before you save them in Tabby so you don't wind up with too much junk in "Other Bookmarks" which is where your Tabby bookmarks will go. Thank you, TabbyBill!!