@prestontumber @eseilt @aeva My argument (which, I repeat, is just based on a hunch) is that if we had a good share of Firefox clones from day one, Firefox/Gecko might still be more relevant than it is today, alleviating the "poor support from websites" part.
The Firefox forks you mentioned are, by the way, a good start, but AFAIK they deviate much less from upstream Firefox (in UI/UX or functionality) than some of the Chromium forks do.