Perform the suggestions mentioned in the following articles:

1. Configure firewalls so that Firefox can access the Internet
2. Temporarily Disable Antivirus or Update Security Softwares
   • http://kb.mozillazine.org/Unable_to_save_or_download_files#Temporarily_disable_antivirus_or_update_security_software
   • Restart your system after making changes

-> Update Firefox to the latest version 10

• How to install Firefox on Windows

Check and tell if its working.

Thanks for trying, yet it did not work. I think I will have to take it to the Geek Squad!

Were you able to Download latest Firefox version using some other web browser ??

I attempted to download it with internet explorer and it would not work. Any other suggestions? I would be grateful.

Hi, I decided to try downloading an earlier version, which worked, and then ungraded to Firefox 10 - it worked! Thanks for your help.

There have been a lot of crashes, rollout of Firefox 10 upgrades being suspended. It may be interesting to have your Crash ID s. Can you post some of the recent ones in a message please. If they happen to be one of the troublesome signatures and you have now resolved the issue the info could be of use.

The article firefox crashes explains how to obtain CrashID s , it is fairly easy you start by going to about crashes using the location bar.

( see also )