Comment 5 for bug 541951

Frankly, to solve the specific case of Debian users trying to enable updates, I think the best course of action is to get rid of the app.update.url pref from the Debian builds: then even if the user were to turn updates on, nothing bad could happen.

I'm trying to find somebody to help walk through the twisted jungle here; this is not likely to make it for FF3.1 because it touches something close to PAC, which is some of our most fragile code.