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Firefox will not load https (and other websites)


Hello everyone.

I'm running Firefox 18.0 on Windows 7 (64bit). Out of the blue, it started not loading certain webistes. It just spits out blank pages, or does not react when clicking login buttons. The web console will display a GET-message [for facebook: http/1.1. 302 Found 174ms], but hard reloads (CTRL+F5) do not help either.

So far, I have encountered problems with :

- Facebook (blank page)

- Amazon (will not react upon "login")

- GMX (will not react upon "login")

- Mozilla.org (will not let me download Firefox anew OR create a support account)

- My university's library catalogue (will not react upon "login")

- Any of my university's https://-pages

- The Google search in the Firefox task bar.

- EDIT: The e-mail confirmation link this board has send me will not load either.

They will load in Internet Explorer, so here's what I did:

- EVERYTHING from the "Firefox can't load websites, but other browsers can" page, including Removing and readding FF to my Firewall exceptions, changing proxy settings, Dis- and enabling IvP6 settings, DNS Prefetching, Clearing cookies, history, browser cache and network cache, full system scan

- Deleting and Reinstalling Firefox

- Dis- and enabled SPDY in about:config

Please help. I'm at the end of my rope. Thanks.

EDIT: The websites work if I start FF in safe mode. Hope this leads to something.

Modified by Pali

Additional System Details

Installed Plug-ins

  • Shockwave Flash 11.5 r502
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • Adobe PDF Plug-In For Firefox and Netscape "9.5.2"
  • 4.1.10329.0
  • DivX Plus Web Player version
  • DivX VOD Helper Plug-in
  • Office Live Update v1.5
  • Windows Presentation Foundation (WPF) plug-in for Mozilla browsers


  • User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:18.0) Gecko/20100101 Firefox/18.0

More Information

  • Top 10 Contributor
415 solutions 4908 answers

The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information. Note: This will cause you to lose any Extensions, Open websites, and some Preferences.

To Reset Firefox do the following:

  1. Go to Firefox > Help > Troubleshooting Information.
  2. Click the "Reset Firefox" button.
  3. Firefox will close and reset. After Firefox is done, it will show a window with the information that is imported. Click Finish.
  4. Firefox will open with all factory defaults applied.

Further information can be found in the Reset Firefox – easily fix most problems article.

Did this fix your problems? Please report back to us!

Question owner

Oh cool. That worked. Thanks!