Good to know that the people in Mozilla are actually capable of leaving. What I don't understand is why they don't all leave together and get themselves leaders who actually care about Firefox instead of the dollars. I bet that if there was a big push by Mozilla employees to a new browser on top of Servo (as was originally the plan?), they joined whatever foundation Servo has, and they made a lot of noise about it, many people would be itching to move their donations over from Mozilla to OpenCollective.
Firefox lost users not only because Big Goo threw thousands of engineers at their own browser, but because they actively fucked up nearly everywhere they could. Sure, FF got faster and more stable and and and, but it also introduced a ton of crap nobody asked for. They also had random projects that had absolutely nothing to do with Firefox which just wasted their time and money.