This "Crack" is simply a couple of css styles that improve your experience while using the face-recognition service "pimeyes.com"
These css styles un-blur the text (Kind-of useless, since the URLs shown have some kind of obfuscation applied). It also removes the "buy premium" overlay from the images, so you can download them or reverse-image-search them with an addon like search-by-image It also allows you to SELECT the un-blur'ed text.
You can either load the styles in "styles.css" manually, or import "userstyle-import" from the Stylus Add-on.