A Firefox update should not prevent internet connections for other browsers. See [[Firefox and other browsers can't load websites]]. You could also try a Microsoft forum at https://answers.microsoft.com/en-us/windows or the Windows 7 forum at sevenforums.com

I now find that I CAN access the internet but ONLY with Internet Explorer; Not Firefox or Chrome. Problem occurred IMMEDIATELY after 56.0.1. I don't believe in coincidences.

It is possible that your firewall or other security software blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program. Remove all rules for Firefox and the plugin-container from the permissions list in the firewall and let your firewall ask again for permission to get full, unrestricted, access to install for Firefox and the plugin-container process and the updater process. See: *https://support.mozilla.org/en-US/kb/server-not-found-connection-problem *https://support.mozilla.org/en-US/kb/Firewalls *https://support.mozilla.org/en-US/kb/fix-problems-connecting-websites-after-updating ---- Boot the computer in Windows Safe mode with network support to see if that has effect in case security software is causing problems. *http://www.bleepingcomputer.com/tutorials/how-to-start-windows-in-safe-mode/ *http://www.7tutorials.com/4-ways-boot-safe-mode-windows-10