Firefox 3 has been acting really flaky for me since I started using it, and crashing near weekly. Yesterday morning it crashed and when it came back up it had lost the Theme I use and most of the plug-ins. Grr.
OK, it works well enough for everyone else, and the standard debugging tricks have not worked: time to reinstall from scratch. Just what I wanted to do last night, let me tell you. It's mostly back up and running, but I have a lot of importing of data and state yet to do. Argh!
On the upside, maybe this will fix the bizarre session saving problems I've been having.