I'm not sure whether to agree with your last statement. While historically, Firefox lost troves of market share to Chrome, currently they seem to be fairly stable [1]. While tech boards are definitely a small fraction of users, the general notion around Firefox seems to be more positive recently than say, a few years ago, so I wouldn't be surprised to see them take back at least some of the lost share. While Chrome is currently a very dominant player, it's around the same level of usage that Internet Explorer was historically so market shifts of that scale are definitely possible.
[1] https://gs.statcounter.com/browser-market-share#monthly-2010...