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Firefox changes http into https while IE does not, and requested pages are not shown

vittorioolivati
vittorioolivati
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When logging to Facebook and Wordpress, and other services I receive "Firefox can't establish a connection to the server"...even after clicking "add this" in http://support.mozilla.com/en-US/questions/new?category=b2&product=beta page; with Gmail when clicking on Gmail button from http://www.google.it/. All suggestions in support pages are useless (Firewall settings, no proxy, etc.); in all quoted cases Firefox changes http into https, while IE 6 does not, and in all quoted cases with IE 6 works

When logging to Facebook and Wordpress, and other services I receive "Firefox can't establish a connection to the server"...even after clicking "add this" in http://support.mozilla.com/en-US/questions/new?category=b2&product=beta page; with Gmail when clicking on Gmail button from http://www.google.it/. All suggestions in support pages are useless (Firewall settings, no proxy, etc.); in all quoted cases Firefox changes http into https, while IE 6 does not, and in all quoted cases with IE 6 works

Todas as respostas (2)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
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Sounds that you have installed an extension that makes such a protocol change.
NoScript has such a setting and there is also HTTPS Everywhere.

Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the extensions is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).

vittorioolivati
vittorioolivati Autor da pergunta
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It was Norton antivirus. I didn't had confirmed my subscription and I am using Avast; I was aware of conflicts, and disabled Norton without uninstalling it, believing it was enough, so that I didn't even quote it when describing my sw. configuration. Only once I thoroughly uninstalled Norton, Firefox (and other browsers I was trying, all with the same problem) started working perfectly.

Anyway, cor-el, thank you for your help. Best regards.

Alterado por vittorioolivati em