Workaround Working?

This should have been a comment to Serwat's post, but as my workaround has yet to work properly, I am writing another post. Did everyone else get their Firefox fix to work? I was surprised to learn that some work networks are stricter than others... could that be the case with ours? Anyway, I'll try again.

Update: The fix works like a chuanr!! When I had originally tried I had used a proxy.pac file that I made myself, but apparently I didn't make it properly. I used the one Serwat sent and it works wonderfully! And Wikipedia too.... nice!