What I can do, is criticize them and hope they listen. I'm not gonna use a product I dislike just of charity, to boost their marketshare, while they're swimming in those sweet Google dollarydoos and ignoring their long term users.
I'm a user, and as a user I use the best tool for me because it's a tool, not a religion I must preach to others.
https://addons.mozilla.org/en-US/firefox/addon/simple-tab-gr...
https://search.brave.com/search?q=tab+groups+for+firefox&sum...
https://blog.mozilla.org/en/mozilla/heres-what-were-working-...
The fastest way to adoption would be to listen to the users and make the best web dev tools.
FF drives me mad, tabs bookmarks, containers, profiles, extension security and transparency. Wtf does Mozilla spend its money on?
this is my 2 cents
https://blog.mozilla.org/addons/2022/05/18/manifest-v3-in-fi...
If people cared about privacy majority of users wouldn't use Chrome.
Also what is the point of complaining about spyware when the only viable option is Chrome (and other Chromium based browsers), I trust Mozilla more than any proprietary browser vendor. They collect less data than any of the proprietary browsers. I can actually disable "spyware" using config options. They are not some black box switches that might disable the "spyware" unlike proprietary browsers.
And yes 97% of people are idiots who should never have been given a computer. They don't care that every bit of data is phoned home thereby making worse for the rest.