Ensure active scanning is turned on. Modern antivirus software can detect malicious scripts attempting to run in your browser.
If you want to tonight, skip the dangerous pop-up laden sites. Open Tubi or Pluto TV . They have apps on Roku, Apple TV, PlayStation, Xbox, and Smart TVs.
Piracy sites are the primary breeding ground for malware.
For free streaming sites (both legal and illegal), an ad blocker is crucial.