[1] https://www.tomsguide.com/news/28-bad-browser-extensions
[2] https://www.labnol.org/internet/sold-chrome-extension/28377/
What was strange about this was that they all thought this was normal.
I feel the same way about browser add-ons today. All they can do is slow down your browser, add bugs, and violate your privacy. Most of them don't do anything of value that you can't just do on a web site.