It looks like I might have just fixed it myself, by carrying out the following procedure:
1. Uninstall Firefox using the Ubuntu Software Centre 2. Delete the folder /home/(Home)/.mozilla 3. Install Firefox using the Ubuntu Software Centre 4. Reconfigure Firefox setup. I've noticed a couple of minor changes (eg. one or two missing add-ons, and I had to fix my Bookmarks Menu a little bit) but the main thing is that my Bookmarks Toolbar now appears as it is supposed to, and my Pinned Tabs don't disappear every time that I close the browser. It's a pain in the neck that I have to set up all my Search Engines yet again. I hope it doesn't go bad again, because there are certain things about the presentation of some websites within Firefox to other browsers, like Google Chromium and Google Chrome, and it gives me functionality that I can't get in Epiphany. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1252905 Title: Pinned tabs and bookmarks toolbar have disappeared To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1252905/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs