If 1% of regular Firefox users just donated the equivalent of 10USD per year to mozilla, they would not have the need to find ...eyebrow-raising... ways to earn money.
Only if they'd also spin off the browser from all the political activism and NGO cash grabbing, and let people choose themselves to which of the two their money goes.
On the other hand, people would be more inclined to donate money if they could trust Mozilla to value the privacy of their users, which is one of the biggest reasons people choose FF in the first place.
