Come on - this is pure cynicism on Mozilla's part. We're not seeing this because Mozilla is trying to increase cultural understanding (cross cultural understanding is something I wholeheartedly support) - we're seeing this because Mozilla wants to make money by grabbing their users' attention for free and selling it for money.

It's not even opt-in, it's opt-out. We're not Mozilla's customer any more at this point, the customer is the one buying the ad space. Gives a new meaning to "Just Browsing" the web when your browser itself is becoming more and more like a mall.