Do you know how the payment amount is determined? I don't, but other such things are often structured as revenue share agreements, in which case it would not b

Do you know how the payment amount is determined? I don't, but other such things are often structured as revenue share agreements, in which case it would not be exactly "ads in a different product segment", but rather "a fraction of the ad revenue directly attributable to Firefox". At which point it's really no different from how AdWords or the like work.