Things like this make me shake my head https://cryptobrowser.site/en/ - if you visit the site make sure you have ad block, block trackers etc. Pretty sure it’s based on Chromium, but anyway a browser made specifically to “mine bitcoin while you browse”. Sounds like extra resource hog to me. Also they actively encourage you to login to Google or Facebook to save your mining progress. The whole thing sounds like a privacy nightmare and sadly no doubt some people will fall for it.