Even the URL is shocking, as all sorts of trademark violations are in it: http://firefoxupdate.googlepages.com/home But the incentive to click on the banner is classic.
I think that it's allowed to encourage people to download firefox with google toolbar. I contacted the support and they say that you can headline the firefox banner by " We recommend firefox " or something that mean that the site is better browsed with firefox.
Real classic, I did follow his instructions and click on the banner, though not on the portion he is hoping for, just clicked on Feedback to Google and reported it.
Neither, maybe if you have read the TOS of Adsense you will have understand the issue. The page is MFA (Made for Adsense) which is bad enough. The worse is it tricked users to click onto the Adsense banner which is explicitly prohibited by Adsense.
Nothing new, there are quite a few pages like this out there. What he / she should have done was use javascript to detect firefox or IE instead of displaying the banner to firefox users too.
Clever? You can have only 1 Adsense account, banned and you get banned for life. Is it worth to squander it on such a cheapskate scam where you wont get paid but will receive a ban for your efforts? Adsense aren't stupid, they have been dealing with tens of thousands of publishers and they do know what to look for.
That particular page/subdomain don't rank at Alexa at all. The 337 rank is for googlepages.com. Anyway, i think it would have been different if he had put a ffox referral button instead of a 468x60 banner on there, eh? No?