After updating Firefox to Version from version 17 to 18 via automatic update it displays the following error message when trying to vists SSL sites ( via HTTPS://)
“The proxy server is refusing connections”
After rolling this back down to version 17 with the installer it starts to work again
We do use a proxy onsite provided by Network Box with no authentication.
I have had to disable automatic firefox updates via , to stop it updating
Select “Tools” and “Options” and wait for the pop-up window to appear. Choose “Advanced” and “Update.”
*** Update *** 21/01/2013
Known Firefox Issue : http://support.mozilla.org/en-US/questions/946573
Firefox 17 Links
Trackback from your site.