I've covered it a few times on the Register. :-)

5Y ago:

https://www.theregister.com/2021/11/04/waterfox_firefox_fork...

Last year:

https://www.theregister.com/2025/12/18/firefox_no_ai_alterna...

This year:

https://www.theregister.com/2026/01/19/just_the_browser/