no, they do sell your data, they just make an effort to anonymize it:

We still put a lot of work into making sure that the data that we share with our partners (which we need to do to make Firefox commercially viable) is stripped of any identifying information, or shared only in the aggregate, or is put through our privacy preserving technologies (like OHTTP).

they used to think this technically didn't count as "selling your data", but some privacy laws are better written than they thought.

Looking at the ars technica article shared in this thread, that does not seem to be the case. They just removed it.

Where? Because IIRC, they didn't.

???

an AI initiative to "build the world’s most trusted software company"

That's like fucking for virginity 🙄

LibreWolf

If you don't care about the extra security and privacy stuff that it adds and just want an unfucked firefox fork you can follow this reddit comment:

/u/aaaaaaaaabbaaaaaaaaa

Go on about:config. Type "privacy.clearonshutdown". Many options will show up. Make sure those between "privacy.clearonshutdown.cache" to "privacy.clearonshutdown.sitesettings" (including the two) are set to FALSE.

Then type webgl.disabled and set it to FALSE.

Go on Settings:

On General->Startup, Enable Open previous windows and tabs

On Privacy & Security->Cookies and Site Data, uncheck "Delete cookies and site data when LibreWolf is closed"

On Privacy & Security->History, check the three options there.

On LibreWolf, disable "Limit cross-origin referrers", "Enable ResistFingerprinting", "Enable letterboxing", "Silently block canvas access requests", and "Enforce OCSP hard-fail".

Also on LibreWolf, enable webgl.

I'm using Waterfox (based on Firefox but without the bloat), both desktop and mobile versions. Have nothing but good things to say about it.

A good middle ground between usability and privacy is also Zen Browser.

https://zen-browser.app

Furry costumes are not the problem, but their CEO is.