I also posted this under "Tabs." All of a sudden I started getting a strange download message, a download which didn't show up when I looked for it. Since then, when I press "+ New Tabs," a new tab doesn't open. A new tab opens only when I've clicked on a new link for a topic. I cleared the cache, restarted my phone twice and un-and re-installed Firefox twice. I was originally synced with Firefox on my other phones, but I don't want to sign in again with that email until this problem is fixed. I haven't opened Firefox again on my previous phones since this all started. I'm going to cry if those versions are "infected" with this problem as well. I just can't erase all the data I've previously accumulated within Firefox on those devices, either. Now I've looked in Firefox Support for this problem and I've looked again and again for a way to restart in Safe Mode, but I can't find it. Could someone please help me diagnose and fix this issue?