

Firefox started as a fork of the Mozilla browser that was really good in its own right, got rid of bundled stuff people didn’t want from the previous project, gathered user and developer support, and caught on. Why shouldn’t a good fork of Firefox be able to do the same?
And the world supports many free and open source OSes, many of which have no present ties to or support by the people or organizations who started the things they were forked from.
I see no reason why the next big browser thing couldn’t be a Firefox fork.