I’m no longer using Firefox on any of my devices. On the Mac, I’ve now switched fully over to Vivaldi, while the iPad and iPhone are both back to Safari.
I still like Firefox, and there are features I’ll miss like the Containers system for segregation certain domains to limit tracking. But both Safari and Vivaldi are good enough for my needs.
I’m uncertain as to the future of Firefox, and Mozilla in general. I wish I could have more confidence in them, but it looks increasingly like they’ve lost their way. :(