I Broke Firefox

So I installed a new Fedora Core 5 on my laptop, and was trying to build the drivers for the wireless. Step one was to do an upgrade of the OS.

In the midst of doing this, I was attempting to listen to a podcast from Firefox. I don’t know whether this happened as a result of the upgrade, or of the podcast, but at some point, Firefox crashed, taking down all running instances of it. And it wouldn’t reload. When I click on the icon, I get a little tab in the taskbar saying “Starting web browser” which hangs on for a few seconds, then disappears.

I completed the upgrade, and rebooted. But Firefox still won’t load. I removed it with yum, and then reinstalled it. Firefox still won’t load.

Does anyone know what’s going on, and how to fix?

[Update on Wednesday morning]

OK, I removed Firefox, removed the folder containing its settings and reinstalled. All is well now. Except I had to resurrect my settings from scratch.