Firefox has a new version out: 0.10.1 (or 2.0PR – for "Pre-Release"). We're getting very close now to 1.0 – at which point, I'll probably find something else to tickle my fancy, but that's beside the point.
However, with the change from release 0.9.x to 0.10.x, there seemed to be a change in the way that the user is authenticated on a proxy server. I work in a windows-only environment, and until firefox/mozilla added support for authentication with proxies through MS' NTLM, I was stuck. When it did come, happy days. But because I authenticate using a different login account as my windows one, firefox always asks me for the username and password when attempting to go through the proxy server for the first time.
Not any more. It happens every time now with 0.10.x. It's a complete annoyance, because now I don't know if it's because of firefox or because my password has expired. And if it's the latter, more annoyance, not just for me but also for the helpdesk people.
Perhaps this was caused by the patch for bug 231529. Can you please try setting
false? You can use
about:config to change the value of this preference.
Spot on. That's what fixed it for me.