There were discussions within Mozilla regarding whether this would be a good idea. Over the years, we released several smaller browsers for Android (Firefox Foc

There were discussions within Mozilla regarding whether this would be a good idea. Over the years, we released several smaller browsers for Android (Firefox Focus, Firefox Rocket). We rewrote a browser basically from scratch for FirefoxOS (which is now used in KaiOS, I believe). I believe that if any of these browsers were ever to become big successes, a case could be made. For the moment, it doesn't look like this is happening.