Strict is the level that provides stronger protection, but consequently you might find some web pages that fail to load properly. It’s a balance between performance and protection.
The default level is Standard which is designed to block social media trackers, cross-site cookies, cryptominers, fingerprinters, and tracking content in Private windows. It comes with an enhanced tracking protection that provides three protection levels. Many users believe that Mozilla Firefox offers better privacy than Google Chrome. The huge gap in market share between the two browsers is a serious concern, however, especially considering the fact that Mozilla Firefox had been around for some time before Google Chrome was released.
It has a highly active community that has been discussing about the browser for years.
After Microsoft decided to develop their newest browser based on Chromium, Mozilla Firefox is probably the strongest contender to Google Chrome.