[aboodman]

Here's a short relevant Reddit thread:

https://www.reddit.com/r/firefox/comments/9uemks/greasemonke...

Though I wrote Greasemonkey originally, I have no idea regarding the answer to this question. What I can say is that Anthony Lieuallen is a super standup guy, which is why I handed it over to him and Johan way back. Based on that alone, I personally continue to use GM whenever I have a need.

[brianzelip]

Thanks! GreaseMonkey was so crucial back during my Ingress days!

[arantius]

Thanks Aaron!

GreaseMonkey is still pure open source, MIT licensed. For a while we had some general telemetry built in, but that was back in the 3.x days, so not for over two years now.