That said, look into Ungoogled-Chromium or Iridium :
https://github.com/Eloston/ungoogled-chromium
Both projects try to clean up the spyware that Chromium essentially is by design.
See Bromite for Android :
It’s like poor people voting for popular right wing parties that have no interest or intention in their problems.
* Assuming this an authentic question and not trolling.
https://www.mozilla.org/en-US/firefox/developer/
It's Firefox with some more configurability if you need it.
The home page just describes features which seem to be in plain Firefox. Last time I searched for details, I could only find unofficial answers in Stack Overflow and such, much of them probably obsolete.
I want to know what I install, not blindly trust some ridiculous PR: "Firefox Quantum: Developer Edition. Welcome to your new favorite browser. Get the latest features, fast performance, and the development tools you need to build for the open web."