Back in 2008, Eich donated $1000 to the campaign on behalf of Proposition 8, an amending of California's state constitution restoring heterosexual relationships as the only ones legally recognized as marriage. A state court had earlier thrown out part of the California code on marriage and family law defining marriage solely between a man and a woman. Proposition 8 restored that definition until a federal court ruled against it. The revelation that Ein donated money came out in 2012. Nobody really cared. Once he received his promotion, however, a mob began to assemble.
The first members of the mob to gather consisted of husband and husband team of Hampton Catlin and Michael Linhorn Catlin, who founded the technology company rarebit.
When they learned of Ein's promotion, they disassociated rarebit from the Mozilla. They communicated to Mozilla their intention to no longer develop applications for Mozilla software. CEO Hamlin Catlin explains it all here. As he writes, it is "very, very personal."
And that's the problem. It should not be personal; it should be business.
The decision of at rarebit was followed by the call for a boycott of Mozilla by OKCupid, a dating site.
Apparently Mozilla began receiving criticisms and additional boycott threats within the "tech community."
It was time for Eich to go.
Mozilla chairwoman Mitchell Baker posted a somewhat incoherent piece explaining the decision here.
She asserts that Mozilla supports "both equality and free speech." She did not explicitly say so, but it appears that when they conflict, free speech must go.
She also made the by now transparently false claim that Mozilla culture supports "diversity and inclusiveness."
She never really explained how Eich's presence violated those values, only that Mozilla "failed to be guided by our community." In other words, Mozilla allowed homosexual rights advocates to enforce their "very, very personal" views on Mozilla.
This seems to be the most recent but probably not the last fallout from the battle over Proposition 8. One of the sideshows of that battle was the effort of homosexual rights advocates to secure the names of those who donated to groups supporting Proposition 8. At that time, California campaign disclosure laws preserved the privacy of political donations. A judge overturned this law as well, and so the names of donors such as Brendan Eich became public.
Now we see the reason behind that lawsuit.