I've been using the extension for a long time now, and it works great--with one exception, the thread watcher. Sometimes when I close Firefox, it will erase all my watched threads. When I reopen the brower, I'll return to find an empty list of threads on every board I browse. This is quite a huge bummer, it's come to the point where I'm afraid to close Firefox.
Any clue on why this might be happening? It's not every time either, it seems to occur at random.