Regardless of the reason why, we're now reaping the fruits of Google's unchecked rampage across the browser space, what with Chromium/WebKit all but taking over. Mozilla continues to be starved for cash. Most Firefox users despise one of its only monetization strategies (selling advertisements). FF would be dead tomorrow if Yahoo (or whoever the default search engine is) pulled their funding. Mozilla is surrounded by rocks and hard places on all sides, what else can they do?