Chrome may well be the most secure browser, but…

Malware comes in many forms, but extensions and add-ons to Chrome and other browsers are  one of the most common for home users to contract. Once infected, browsers can be almost impossible to clean, and this extension is particularly rough. Google has taken their time in removing it from their online store, which doesn’t help.

Read more here:

https://arstechnica.com/information-technology/2018/01/malicious-chrome-extension-is-next-to-impossible-to-manually-remove/

And here:

http://www.darkreading.com/attacks-breaches/rogue-chrome-firefox-extensions-hijack-browsers-prevent-easy-removal/d/d-id/1330854