The issue is that Firefox is, as far as I know, much much more difficult to simply use as just the “rendering engine” for some other customized browser.
There’s the arcfox experiment thing that tries to make firefox look and feel the same as arc, but if arc isn’t mature, then this thing is just simply unusable to almost everyone. It’s still probably easier to do than to make a completely new browser using firefox as a base though.
The issue is that Firefox is, as far as I know, much much more difficult to simply use as just the “rendering engine” for some other customized browser.
There’s the arcfox experiment thing that tries to make firefox look and feel the same as arc, but if arc isn’t mature, then this thing is just simply unusable to almost everyone. It’s still probably easier to do than to make a completely new browser using firefox as a base though.