Firefox not working after update - can't find a solution


I seem to have encountered the common problem - Firefox will no longer work after an update. It just loads a blank white page, and won't load any webpages at all. Though, I have tried a few different fixes and still can't get it to work. I have tried:

Restarting computer, Uninstalling and reinstalling Firefox, Removing Firefox from the list of trusted programmes in Comodo Internet Security; then adding it back again, Adding Firefox to the list of trusted programmes in Windows Firewall, and configuring Firefox to not connect to the internet through a proxy.

Does anyone have any other suggestions? Thanks.

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