1. Then why not add a "perf reporter" and a "paint jank" reporter? "Hi! It seems that this page is loading unusually slowly, would you mind submitting more det

1. Then why not add a "perf reporter" and a "paint jank" reporter? "Hi! It seems that this page is loading unusually slowly, would you mind submitting more details to help Mozilla diagnose the issue? Click `More Details` to see exactly what information is being reported." You even already have a good entry point for one of these - the "unresponsive script" dialog. Personally, I'm far more likely to send you this data (after having looked over it) than even the opt-out case. If I have to opt-out of all data collection to be sure I don't accidentally report www.really-illegal-pornography.com to Mozilla I'll opt out and you'll never see any information from me at all. If I can avoid sending reports for www.reall-illegal-pornography.com but still report lots-of-annoying-javascript.google.com than you'd get more out of me. 2. If the issue is reported 10x more often on docs.google.com than on obscure.yahoo.com only because docs.google.com is far more common (even though the problem happens only on 0.00001% of visits to docs.google.com but on 10% of visits to obscure.yahoo.com) it does indicate that the issue in docs.google.com is more important. Sure it is rarer per visit, but a user is still 10x more likely to encounter it.