Re-flashed my Firefox after toying with the Task Manager for a few hours. It's a great feature that I'm looking forward to putting to use but in the present beta state the software caused several freezes, and for some reason the standalone dictionary wouldn't want to "cooperate" when I tried to use it while a book was open in FBreader. There was no way to exit the dictionary and go back to the book. I'm waiting for an "official" build so I can start reading Tolkien in two-tree languages simulaneously.