Earlier quoted context omitted.
If I were an LGBT employee at Mozilla, I would be pretty pissed and demoralized that my "leader" was actively trying to remove my rights. Because that's what Proposition 8 was, an attempt to constitutionally remove marriage rights from gay people after the California courts ruled that it was allowed. I think I'd be pretty uncomfortable making money for a person who would turn around and it to take away my / my family…
What did "marriage rights" actually change? I know taxes changed, and I assume there were some property implications beyond just sticking it to bigoted Christians, but that last part seemed to be the major feature.
It was in the discussion around the referendum on gay marriage which passed.