Telemetry per se means nothing. Even Vivaldi has technical telemetry. It's essential to understand crash paths and to improve SW. and to understand what feature is used and what's not. Telemetry intended as collecting the navigation history, the user's habits, made by the big brothers Apple, Google , MS and Co. is a way different thing. First because they collect data also from other sources, like email, navigation SW, the OS itself, second because the scope. In that area there is a big difference between blade and razors vendors.
#1 I'm not defending FF here, I'm just trying to elevate the discussion above the 14 Y/O level #2 Why move the discussion target to a web service if the discussion is about browsers? #3 that said many (if not most of ) attacks (both to websites and browsers) are done triggering crashes, so I'm not surprised at all.
You forget one thing. It can be disabled without recompiling from source. Which is usually not possible in case of chromium browsers.
Relax. #1 I'm not a FF lover, like I already wrote before, I use some FF derivatives as a second browser to Vivaldi which is a light year better browser than FF just like Opera was a decade or two ago. #2 Second I have no reference to cloudflare in any of FF based browsers I looked at, perhaps cloudflare is also the owner of 1.1.1.1 DNS, so is pretty obvious that if you use that DNS there are requests to it, no matter the browser you use #3 Not sure what do you want from me, I'm not the FF support, nor its complaints inbox, I'm an user of a discussion forum and I reply to whatever I find interesting. The point is the biodiversity is gone. Presto was killed, trident was killed, no one hes the resource to start a web engine from scratch, so there is no "want". What we can do is to limit the damage using the best out here, and the best ATM is called Vivaldi. FF flavours are too close to plain FF or too diverged making them useless on many websites. Wow palemoon's devs made the discovery of the tap water. Like I said earlier in this thread Vivaldi guys spent at lest 6 months to degooglify chromium, and it's still a continuous job. Why de-firefoxify something should be any different?
Edit: Wait never mind discovered I was talking about something else so everyone can ignore this or even delete it if possible lol.
You can block their servers via about:config settings and system hosts file. It is effective. I have tried and done it.
You can use it only if you visit only trusted web sites. Otherwise there are serious security issues with older versions.
You can use command line 109.0.5414.149_chrome_installer.exe --system-level to update Chrome from an existing installation.