It is a lie that "everyone at Mozilla was against him".

I worked at Mozilla at the time (distinguished engineer). I don't know about the board, but the vast, vast majority of staff wanted Brendan to stay. A handful of Mozilla Foundation staff spoke out against him and got lots of publicity.

Not really the truth though. They wanted him to stay, but in a different role. I regard that as being fired as CEO and I do not understand how you could interpret that in any other way. Several employees started a campaign demanding his resignation. Other companies like OkCupid stated recommended Firefox users to switch to Chrome and there were others as well.

Sure, he wasn't really fired by the letter but rather he was smeared and a lot of people organized a hate campaign towards him. Who would want to stay in such a toxic environment?

Incredible that the same people that claim to value diversity and inclusion just loves to exclude and give people incredible amounts of hate when they do not conform to the exact same beliefs.

No one in the board backed their CEO or defended him. I am not adjusting the facts. I do believe in same-sex marriage. You can marry whomever you want beacause I do not care, but to give someone the treatment he got for not believing the same thing is just horrible and unjust.