Every time I open I get a proxy error. I change it but it reverts back whenever I restart Firefox.

Question

I just downloaded Firefox 4. EVERY SINGLE TIME I open it, I get the proxy error message. So I go to Tools --> Options and change the connection settings. This makes it work - until I have to close it and open it again. This has never happened with any other version of Firefox and does not happen with IE or Chrome. It's very frustrating to say the least.

Answer 1

Could do the following please.
#In the location bar, type '''about:config''' and hit Enter.
#In the filter at the top, copy/paste the following: '''network.http.proxy.keep-alive'''
#Double click it to set it to '''False'''.
After you configure "No Proxy" in the Advanced | Network settings, close and then restart Firefox, it should prevent what's happening at the moment because normally, FF will attempt to reuse open proxy connections.
If it doesn't work, you can reset it again by double clickiing the entry to change it to "True".
One other thing you could try (assuming the above method fails), is to create a new Profile. See [[Profiles]] and [[Managing Profiles]]. The latter explains how to move data from the old profile to the new one.