Firefox irritations
When it first came out, session management was put forward as a feature, but I am starting to think that the inability to turn the damn thing off is actually a bug.
If you turn the OS off, with firefox still running, then it thinks there has been a crash, and offers to open all your pages again which I never want — if I have turned the machine off I am unlikely to remember which pages I had open. If there has been a crash, then having Firefox open all the pages again, one of which made it crash last time, seems like insanity.