Staff recruitment and retention roles.
> Director of Strategic Alliances and Platform Strategy - Mixed Reality
Easily mockable since it has "strategic" in it twice, but ultimately this role should either get money into FF or get FF into more platforms. Focus on mixed reality / AR seems questionable in retrospect.
> Global Event Maker
Did Mozilla have many events? I don't really remember hearing of any.
> Senior University Recruiter
Fairly obvious: recruit graduates from universities.
> Senior Product Designer + Growth
This actually sounds pretty core; someone has to define the product, and I don't think you really want that left to the forums.
> Lead UX Designer for Brand, Senior Brand Designer, Head of Design, Brand Designer
That may be one or two many designers, resulting in unnecessary UI churn.
> Senior Executive Assistant
Everywhere has one of these. PA to the boss. They tend to be surprisingly critical since they know what's going on even if they don't have formal responsibility.