[goalieca]

I don’t think this is true at all. From everything ive seen, large corporations favour shipping new products and new features. It seems rare to support existing customers unless there is a lot of money tied to it which is probably not the cases for Firefox users. This is doubly true since there is a known workaround to Firefox support: use chrome!

You can try and blame sales, you can try and blame “innovate or die” but also engineering always shares some blame too. Often it’s engineering who want to exploit shiny new tech or make new shiny thing and not do the inglorious work of maintenance and support.