3.6.13 installed and bookmarks went away, won't open backup to restore, won't import and won't create new bookmarks Thanks.
Don't know what else I can add, except that I opened it today and my last browser session with open tabs is lost, and FF didn't recognize that fact, as it usually does.
Opaite Mbohovái (1)
I can add that I have multiple bookmark files saved to my Time Machine (Mac). The only corrupted file is the one from today when all the bookmarks disappeared. However, when I try to restore any of them, Firefox says the file cannot be restored. I saved an html copy and looked the files, and they are fine.