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I cannot load any web pages (500 Internal Server Error)

  • 3 replies
  • 6 have this problem
  • 299 views
  • Last reply by cor-el

herbertf
herbertf

I cannot currently load any web pages when using Firefox. I get a standard "500 Internal Server Error" page on every site. I have tested using IE and there are no problems loading pages.

I have tried creating a new profile, uninstalling and reinstalling, upgrading to Firefox 4 (was previously using 3) and uninstalling and wiping all profile information, but nothing has worked.

The problem started when a video player made in Flash crashed (channel4.com). Windows was completely unresponsive and I could not exit full screen mode of the video. I tried pressing esc, ctrl + esc, ctrl + alt + delete etc but nothing worked and I had to hold the power button on the tower for 4 seconds to turn it off. When I started up again I was presented with the screen when Windows fails to load normally and I selected the "Start Windows normally", which booted up Windows successfully. Since then I have been unabe to view any web pages in Fireox, I always get the 500 Internal Server Error page.

This is an odd one and I am out of ideas, any help would be much appreciated as I really want to get back to using Firefox!

Thanks

I cannot currently load any web pages when using Firefox. I get a standard "500 Internal Server Error" page on every site. I have tested using IE and there are no problems loading pages. I have tried creating a new profile, uninstalling and reinstalling, upgrading to Firefox 4 (was previously using 3) and uninstalling and wiping all profile information, but nothing has worked. The problem started when a video player made in Flash crashed (channel4.com). Windows was completely unresponsive and I could not exit full screen mode of the video. I tried pressing esc, ctrl + esc, ctrl + alt + delete etc but nothing worked and I had to hold the power button on the tower for 4 seconds to turn it off. When I started up again I was presented with the screen when Windows fails to load normally and I selected the "Start Windows normally", which booted up Windows successfully. Since then I have been unabe to view any web pages in Fireox, I always get the 500 Internal Server Error page. This is an odd one and I am out of ideas, any help would be much appreciated as I really want to get back to using Firefox! Thanks

Chosen solution

Which security software (firewall) do you have?

A possible cause is security software (firewall) that blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.

Remove all rules for Firefox from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox and the plugin-container process.

See:

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All Replies (3)

cor-el
cor-el
  • Top 25 Contributor
  • Moderator

Chosen Solution

Which security software (firewall) do you have?

A possible cause is security software (firewall) that blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.

Remove all rules for Firefox from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox and the plugin-container process.

See:

herbertf
herbertf Question owner

Thank you very much cor-el, your suggestions worked and I am back to using Firefox :)

cor-el
cor-el
  • Top 25 Contributor
  • Moderator

You're welcome