I'm always a fan of the donation drive. I'd take a tab pop-up of https://donate.mozilla.org/en-US/ https://donate.mozilla.org/en-US/ over an occasional ad like

I'm always a fan of the donation drive. I'd take a tab pop-up of https://donate.mozilla.org/en-US/ https://donate.mozilla.org/en-US/ over an occasional ad like this one any day. I'd love to do a shameless plug for radioparadise.com as a wonderful model of someone who does an extremely tasteful periodic reminder to donate :).