I bought Grime Fighter and now I can't open Google or Youtube because FireFox says that they do not have a valid certificate

I paid $39.00

I guess you mean Avast Grime Fighter? First of all, any sort of "PC Optimizer" is worthless and you should try to get your money, always, they eventually damage the computers and do anything beneficial that is already built into the OS of the computer.

That being said, if Firefox does not open Google or Youtube, check and see if the date and time of your computer are set correctly. If you still have questions, please come back.

Possible Avast is blocking Youtube and google. I strongly suggest to uninstall and use Microsoft Antivirus (Microsoft security essentials, which is actually built into windows 10 If you take advantage of the free update, otherwise you need to download and install).

Tags: Firefox

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