@firefox part 3 Similarly ecosia as the default browser of firefox with a clear message on startup that ecosia plants trees when you use its search engine and giving a option to use google in the first page itself to whoever wants to use google so that people don’t change the browser itself.
I thought thunderbird still is a mozilla project to this day? I use it and it still comes up as mozilla thunderbird on installers and the like. I definitely agree with your virtue signalling point though, I like that they don’t shove it in your face every time you open the app, it just does its job.