Since news surfaced that Mozilla CEO Brendan Eich's donated to Proposition 8 in California, the internet has been set ablaze, leading to boycotts, the boycotts stemming from those first boycotts, and Eich almost immediately stepping down as CEO. FiveThirtyEight founder Nate Silver took it upon himself to take a look at just how common anti-Prop 8 donations were in Silicon Valley's largest tech companies. A vast majority of the donations made were in opposition to Prop 8 though the numbers differed by company:

At Intel, 60 percent of employee donations were in support of Proposition 8. By contrast, at Apple, 94 percent of employee donations were made in opposition to Proposition 8. The opposition was even higher at Google, where 96 percent of employee donations were against it, including $100,000 from co-founder Sergey Brin.

Clearly, Eich's actions did not speak for Mozilla as a whole—they fucking ousted the dude so that probably says a lot right there. Silver also found that of the 12% of donations that were anonymous, 95% of those donations were made in support of Proposition 8, which I find to be the most interesting factoid.