I've been seeing a lot of comments online about how browser telemetry is just a way to spy on users and we never actually use it, and it provides no value.
We can debate whether you think someone (Firefox or otherwise) overcollects telemetry, or doesn't collect it in a privacy-preserving enough way. And you should be able to turn it all off, for any reason.
But it's been instrumental for me, personally, to ship multiple security improvements to Firefox - and I'm just one of hundreds of developers. I wrote up some more here: https://ritter.vg/blog-telemetry.html
