I used to be able to bookmark any page I wanted to bookmark. In the past week, "Bookmark This Page" in the Bookmarks menu doesn't work all the time, just sporadically. The little Bookmarking star in the URL window doesn't always work either. I tried resetting Firefox, uninstalling any add-ons, deleting a bunch of bookmarks in case I had too many- none of these things work. In addition, if I go to History, the short list of previous webpages that I've recently visited is gone, too.