They get a huge payment from google and other search engines for being in the search engine list in firefox, which constitutes most of their revenue. http://ww

They get a huge payment from google and other search engines for being in the search engine list in firefox, which constitutes most of their revenue. http://www.mozilla.org/en-US/foundation/annualreport/2012/faq/ http://www.mozilla.org/en-US/foundation/annualreport/2012/fa...