When I opened Firefox today I was advised of an update to resolve security and stability problems was available to download. I downloaded this and was unable to access my homepage, and any other page on the web. I tried to download Firefox without uninstalling, as I wished not to lose my bookmarks and favourites. During this process I was advised that the download had been interrupted, but I could continue. I then entered the Install Wizard, which appeared to successfully complete. However, I am still not able to access any web pages there Firefox. How can I recover Firefox as it was before the 'security update' as of yesterday? Regards Alan