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Firefox 15.0.1 not working on Vista 32-bit nor Windows XP after update. Server Not Found error.

  • 1 reply
  • 3 have this problem
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  • Last reply by user66338

veoquanta
veoquanta
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I recently updated to Firefox 15.0.1 on 2 separate PCs. One PC is Windows Vista 32-bit with Comodo Internet Security. Other PC is Windows XP with Avast. Previous version of Firefox was operating fine on both before update. I have exhausted all suggestions from this site to get the new update to work but it does not.

On Vista PC, Chrome and IceDragon also have the same server error but IE works. And I've followed all the suggestions to allow access. I've uninstalled and reinstalled. Changed to no proxy. Tried the network.dns... changes and nothing.

Has Microsoft banned every other browser from operating with their systems via a recent update? I'm wondering if this is not the case since everything was fine prior to this.

I also have a Mac that uses Firefox 15.0.1 just fine since the update so this is exclusively a PC issue.

Windows Firewall and Defender are deactivated. Thanks for any insight you can share.

I recently updated to Firefox 15.0.1 on 2 separate PCs. One PC is Windows Vista 32-bit with Comodo Internet Security. Other PC is Windows XP with Avast. Previous version of Firefox was operating fine on both before update. I have exhausted all suggestions from this site to get the new update to work but it does not. On Vista PC, Chrome and IceDragon also have the same server error but IE works. And I've followed all the suggestions to allow access. I've uninstalled and reinstalled. Changed to no proxy. Tried the network.dns... changes and nothing. Has Microsoft banned every other browser from operating with their systems via a recent update? I'm wondering if this is not the case since everything was fine prior to this. I also have a Mac that uses Firefox 15.0.1 just fine since the update so this is exclusively a PC issue. Windows Firewall and Defender are deactivated. Thanks for any insight you can share.

All Replies (1)

user66338
user66338
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Does deactivating Comodo Internet Security or the other security software help anything? It might be that your security software is blocking Firefox from accessing the internet.

--Tobbi