Why am I getting redirected to random websites!?

I have AVG antivirus and Malwarebytes. YES they are compatible together! Anyways I got on Firefox today and typed in google.com. It loads for a second (the Google logo image took a really long time…) and thn suddenly I got redirected! I clicked Back, but it wouldn’t let me off the site. I tried again and it redirected me to ANOTHER site. I am not clicking ANY google links. It’s redirecting me straight from the Google homepage. And I only happens with google.

I don’t get it. The only sites I have been on in a LONG time are eBay and yahoo. So I couldn’t have gotten a virus lately right? I am running a virus scan. It’s 20 minutes into it and has yet to find anything.

HAS ANYONE HAD THE SAME PROBLEM? HOW DID YOU FIX IT? ANYONE KNOW WHY ITS HAPPENING?

Do NOT tell me to download anything. I won’t so don’t bother

Thanks!