[davebailey]

The Firefox engine sucks. It's resource intensive, buggy, and doesn't play nice with other technologies... think Flash.

Even the former CEO of Mozilla who left and created the Brave browser decided to go with Chromium.

Right now- the only browser engines seeing a lot of action are Chromium and WebKit. Every browser is being built on one of these two engines.

I suspect even Firefox will switch over to gain the benefits of one of those engines and the number of people working on them.