I'm going to repost/merge a few comments I made about this a while ago:

I dropped firefox 9 months so after they updated their privacy policy and removed "we don't sell your data" from their FAQ: https://news.ycombinator.com/item?id=43213612

Mozilla has hired a lot of execs from Meta and bought an ad company, looking through a lot of their privacy policy at the time, a lot of it involves rewriting it to say that they can serve you sponsored suggestions when you're searching for things in their search bar and stuff and sharing out some of that data with third parties etc.

Firefox was bringing in half a billion a year for the last decade, if they would've just invested that money in low risk money market accounts (instead of paying their csuite executives millions of dollars in salary and putting the rest on non-Firefox related related social causes), the company would be able to easily survive off the interest alone.

I've been using Firefox since 2006 and have defended it for decades even when they've made questionable decisions that have gotten everybody upset with them. But this time it wasn't just making stupid decisions to try and fund the company, this time they actuality sold out their own customers.

In public announcement in the above link explaining why they removed "we don't sell your data" from the FAQ, the rationality was that some jurisdictions define selling data weirdly, they cited California's definition as an example but California's definition is exactly what I would consider the definition of selling my personal data.

They're justifying this by saying that they need it to stay alive since they're not going to be getting money from Google anymore, but I argue that you shouldn't sell out your customer base on the very specific reason anyone would choose you. I would rather pay a monthly fee to use Firefox to support them, but even if you gave them $500 million today they would just squander it away like they've done since forever so I really don't have any solution I can think of which frustrates me.

I switched to Orion (and use Safari if a site doesn't work in Orion), which can be a little buggy at times but I'm happy that it's not based on chrome at least.