Exthouse – Analyze the impact of a browser extension on web performance
github.com
github.com
Instead of that, they're disallowing ad-blocking. Not suspicious at all from a company that makes all of its money from serving ads.
The thing that bothers me about extensions is that I have usually no control whatsoever over what information any extension might think they need to phone home about. A tool that logged this per extension would seem more useful to me. Not sure if this is even possible?