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After updating, Firefox won't connect to the internet. All websites timeout. Internet explorer works fine.

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I started up my computer and opened up firefox. A box popped up that said firefox was updating. After updating was complete, firefox attempted to connect to my homepage, yahoo, but the connection timed out. I tried connecting to other websites and they also timed out. My internet connection is good because internet explorer works fine.

I started up my computer and opened up firefox. A box popped up that said firefox was updating. After updating was complete, firefox attempted to connect to my homepage, yahoo, but the connection timed out. I tried connecting to other websites and they also timed out. My internet connection is good because internet explorer works fine.

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Did everything that article said to do, still no connection to web with firefox. IE good

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What ant-virus program do you run?

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Common cause after upgrading/updating is that your security software (firewall) may not recognize the new version and may be blocking Firefox and/or plugin-container. Remove all permissions for Firefox and plugin-container from your firewall's programs permissions list, then start Firefox and go to any website and let it detect and set internet access permissions.


If this reply solves your problem, please click "Solved It" next to this reply when signed-in to the forum.

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Found an old version of Firefox4. Removed my current version of Firefox and installed version 4 and disabled autoupdate for firefox. Everything now works.


My anti-virus is CA2010 and I use the Windows firewall.

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All versions of Firefox other than version 6.0 and version 3.6.20 contain security and stability issues that have not and will not be corrected. Use other versions at your own risk. Your system could become compromised and you could have valuable personal information stolen or lost.

Critical security issues fixed since Firefox 4.0 (8 critical)

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