According to the Wall Street Journal, three of six Mozilla board members have resigned over the appointment of Brendan Eich as CEO. Gary Kovacs, former Mozilla CEO and current head of AVG; John Lilly, former Mozilla CEO and now a partner at venture-capital firm Greylock Partners; and Ellen Siminoff, CEO of online education startup Shmoop, all stepped down last week.

Kovacs and co. resigned because they wanted an outsider with experience in the mobile industry who could help push Mozilla's Firefox OS mobile platform and work alongside co-founders Eich and Baker, the report says.

The three remaining people who are still on Mozilla's board include co-founder Mitchell Baker, LinkedIn co-founder Reid Hoffman, and Katharina Borchert, chief executive of German news site Spiegel Online.

"The three board members ended their terms last week for a variety of reasons. Two had been planning to leave for some time, one since January and one explicitly at the end of the CEO search, regardless of the person selected", a Mozilla spokesperson told ArsTechnica.

Apart from the board departures, Eich is also under pressure from Mozilla employees who want him to step down over his support to California's Proposition 8 campaign that opposed same-sex marriage in the state. Last Friday, many Mozillans took to twitter to express their disapproval of the new CEO.

Following his appointment, Eich had issued a fresh set of commitments on his personal blog stating that he wants to put to rest all concerns through actions and results. On Saturday, Mozilla also said in a blog post that the company supports marriage equality for same-sex couples.