It happened before, with the transition from Mozilla Suite to Firefox. And let&#x27;s be honest: XUL was just lipstick on the pig that is cross-platform development. HTML&#x2F;CSS&#x2F;JS are now fast enough to look like a slightly better pig, so here we go.<p>Also, there&#x27;s a generational shift underway. You and me could find crazy that people would openly choose to use IDEs built on HTML&#x2F;CSS&#x2F;JS, but that&#x27;s what a lot of young folks are doing (Atom, VSCode etc etc). That&#x27;s their world, that&#x27;s what they like. An entire generation now exists, who learnt to code from web scripting rather than C or BASIC. They have taken over. It&#x27;s just how it is.<p>(this said, I agree that donating to Mozilla feels a bit silly, looking at how much money they make from commercial agreements. It&#x27;s like donating to Ubuntu or RedHat.)