I also doubt that it's a large segment of users but count me as one among the millions who dumped Firefox in 2020. I knew it was going downhill when they started purging words from the project. When your inclusion efforts start alienating moderate users it might be time to rethink them.
* Removing "meritocracy" from the governance docs - https://blog.mozilla.org/careers/words-matter-moving-beyond-...
* Changing "master password" to "primary password" - https://support.mozilla.org/en-US/kb/primary-password-replac...
* Removing "crazy" from the codebase - https://bugzilla.mozilla.org/show_bug.cgi?id=1675987
* Removing words deemed as reference to mental illness - https://bugzilla.mozilla.org/show_bug.cgi?id=1675986
The difference in the project from 15 years ago is stark.
The Mozilla mission 2005:
"Established in July, 2003, with start-up support from America Online's Netscape division, the Mozilla Foundation exists to provide organizational, legal, and financial support for the Mozilla open-source software project."
The Mozilla mission 2021:
"Our mission is to ensure the Internet is a global public resource, open and accessible to all. An Internet that truly puts people first, where individuals can shape their own experience and are empowered, safe and independent."
Where they once were just supporting a software project they're now a political movement. They spout "equity", "justice", and "advocacy" all over mozilla.org. No thanks, I just want a decent software.