:lol: no. When it comes to social policy, very intelligent and well-meaning people disagree sharply on what logic and reason say.
No, I think he wanted to win in 2008, and that required that he pose as a moderate. You may recall he also ran against George Bush's 'huge' $500Bn deficit, calling it "unAmerican" and promising to cut it in half in 4 years, promised that he wouldn't raise taxes on anyone other than the top income brackets, etc. Then in 2012, he wanted to run and win, and that required that he revitalize his somewhat demoralized base. That created the venue to allow him to publicly state (again) what had been his position
before he decided in 2004 to lie about it in order to successfully run for President in 2008.
This isn't exactly a right wing nutjob conspiracy theory - it's just the history of the man.
Witness the fact that the typically left-leaning Politifact says the same thing.
Etc. so on and so forth. The man did, in fact, conceal his position in order to get hired.
Not that the CEO of Mozilla (to my knowledge) did so. As has been pointed out, he deliberately donated enough to be part of the public record, and "Are you now, or have you ever, been a member of a social conservative movement" wasn't, as far as I know, one of the questions the Board asked him when they hired him.