The code you linked is nothing out of the ordinary as far as adware in Chrome plug-ins etc. go. For an example have a look at the source code[1] of "Awesome Scr

The code you linked is nothing out of the ordinary as far as adware in Chrome plug-ins etc. go. For an example have a look at the source code[1] of "Awesome Screenshot"[2] which is used by ~1,4M users and also calls home to 7 different hosts[3]. This is just one of many many Chrome plug-ins that is injecting ads and Google encourages this[4]. It makes sense to limit injections to markets they can serve / are affiliates in. [1] https://github.com/heyalexej/pretty-fucked-up/blob/master/bakup/similar-web-content.js https://github.com/heyalexej/pretty-fucked-up/blob/master/ba... [2] https://chrome.google.com/webstore/detail/awesome-screenshot-captur/alelhddbbhepgpmgidjdcjakblofbmce?hl=en https://chrome.google.com/webstore/detail/awesome-screenshot... [3] https://gist.github.com/mvirkkunen/89f61a06819530e48b53 https://gist.github.com/mvirkkunen/89f61a06819530e48b53 [4] https://developer.chrome.com/webstore/program_policies#ads https://developer.chrome.com/webstore/program_policies#ads