if someone has more details: I remember years ago that when I was digging FF source code I saw it was using chromium source code (not everywhere but for the CSS engine and extensions i think),that was the time servo was in consideration, is it still the case? I personally dont mind that I use both chromium + FF with some firewall rules but it always gave me impression that while FF using chromium source it does an advertise like completely different, isolated secure platform. Here is quick search just on "chrome" keyword on source code repo. https://github.com/mozilla/gecko-dev/search?q=chrome&unscope...
Both the word Chrome and the Firefox codebase are a decade earlier than Google's Chrome. Google just reused the word either for the lulz or perhaps in order to create the confusion you seem to be manifesting.
Searching for "chrome" like that likely gets matches for another kind of chrome. Firefox calls everything that's outside of the web page (navigation controls and so on) for the "browser chrome". So many of those hits are simply for other things.
No shared codebase (or even conspiracy!) here -- it's just referring to user interface elements.
Definition: Chrome is the visual design elements that give users information about or commands to operate on the screen's content (as opposed to being part of that content). These design elements are provided by the underlying system — whether it be an operating system, a website, or an application — and surround the user's data.
