I think this started when I went to a bank website and received a popup asking for an updated email address. I received notification of a new email right after, stating something like thanks for signing up for Scorecard. I tried contacting the company by phone, and they asked for my bank account number. I asked what bank and they couldn't tell me. Nada, you're not getting my bank or bank account number. I contacted my bank and they know nothing about this company and are investigating.
Since then, I've been getting lots of unwanted email from a variety of companies all over the world. Firefox is also slow to load links many times.
I'm using 64-bit version of Windows 10, have 8GB RAM, FF 49.0.2, use gmail.
I tried Adwcleaner and Malwarebytes anti-malware (I have the paid version, that runs all the time in the tray). Didn't find anything wrong, but problem persists.
Can someone help?