I don't know if you've ever tried to uninstall the quicktime plugin for firefox to stop it opening mp4 files in quicktime. It's not easy, and it's far from triv

I don't know if you've ever tried to uninstall the quicktime plugin for firefox to stop it opening mp4 files in quicktime. It's not easy, and it's far from trivial. There's many unrelated steps and it's making me seriously consider dropping iTunes for Foobar.