The article notes the increase in pay and states > Mitchell Baker, Mozilla's top executive, was paid $2.4m in 2018 but doesn't offer any consideration or speculation as to why this is exaggerated. It's entirely possible that without that particular exec, Firefox would have been even worse off, or would have taken another direction with regards to privacy, etc. My subjective feeling is that $2.4m does indeed seem too…
Granted, you have to deal with pressure, but today CEO can just switch companies like underwear. They press KPI on every employee but are themselves nearly exempt from any quantifiable metric aside from turnover.
But in general CEO pay is rising with falling results and falling pay for everyone else.