Technology

As I understand it, the message here is that any decently savvy user of Firefox turns off telemetry, so mozilla doesn't know of them using extensions. hence why they say 80% don't use them, people who do use them don't give them their usage data.

Side note - I really like how you crossed out your spelling error instead of just fixing it - I always proof-read my comments after I post them (because I always forget to do it), and this might actually, in s tiny way, be useful to someone who's still learning the language, or just didn't know a particular working is wrong. I'm going to try and start doing this as well, thanks 😊👍