I'm trying to access my old bookmarks from my time machine backup after I reformatted. I went to Users->Name->Library->Application Support->Firefox->Profiles->gobbledygook->bookmarkbackups. There are 5 files there with the extension .json. These files open to some sort of gibberish text. Also, I had a bajillion and seven bookmarks, not just five. I also tried opening Firefox and then accessing the time machine, thinking it would open the "old version" of Firefox, and I could open my bookmarks from there. It just switches back to the Finder when I open time machine. Any help will be very much appreciated. Thanks!