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Pages don't load or load slowly in Firefox 20 and 21

Posted

Firefox isn't loading websites while other browsers are working perfectly. It often shows "Server not found" error and doesn't load sites 9 out of 10 times. It loads sometimes but very slowly and many elements are not displayed properly.

Things I tried to fix this: 1. Disabled DNS Prefetching 2. Disabled IPv6 3. Cleared Recent History (Everything) 4. Reset Firefox 5. Created a new profile

Any pointers?

Firefox isn't loading websites while other browsers are working perfectly. It often shows "Server not found" error and doesn't load sites 9 out of 10 times. It loads sometimes but very slowly and many elements are not displayed properly. Things I tried to fix this: 1. Disabled DNS Prefetching 2. Disabled IPv6 3. Cleared Recent History (Everything) 4. Reset Firefox 5. Created a new profile Any pointers?

Modified by dnyanesh

Additional System Details

Application

  • User Agent: Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.31 (KHTML, like Gecko) Chrome/26.0.1410.64 Safari/537.31

More Information

philipp
  • Top 10 Contributor
  • Moderator
3168 solutions 14661 answers

hello, maybe your security software is blocking the new version of the browser. try to clear all rules for firefox.exe & plugin-container.exe and let the firewall detect the new version of the program again. Fix problems connecting to websites after updating Firefox

hello, maybe your security software is blocking the new version of the browser. try to clear all rules for firefox.exe & plugin-container.exe and let the firewall detect the new version of the program again. [[Fix problems connecting to websites after updating Firefox]]

Helpful Reply

I pretty sure that my Antivirus is not blocking the browser. I also tried Waterfox and Cyberfox, both have the same problem.

I pretty sure that my Antivirus is not blocking the browser. I also tried Waterfox and Cyberfox, both have the same problem.
cor-el
  • Top 10 Contributor
  • Moderator
12905 solutions 118367 answers

Boot the computer in Windows Safe mode with network support (press F8 on the boot screen) as a test to see if that helps.

Boot the computer in Windows Safe mode with network support (press F8 on the boot screen) as a test to see if that helps.

Question owner

This problem has cropped up again in Firefox 24 for me. I am utterly confused. I have tried all things mention here: [Firefox can't load websites but other browsers can]

This problem has cropped up again in Firefox 24 for me. I am utterly confused. I have tried all things mention here: [[https://support.mozilla.org/en-US/kb/firefox-cant-load-websites-other-browsers-can|Support: Firefox can't load websites but other browsers can]]
cor-el
  • Top 10 Contributor
  • Moderator
12905 solutions 118367 answers

Does it have any effect if you boot the computer in Windows Safe mode with network support in case your security software is causing this problem?

Does it have any effect if you boot the computer in Windows Safe mode with network support in case your security software is causing this problem?