Firefox plugin to see google ads anyone?

Hi
Does anyone know if there is a firefox plugin/adon out there that can help me see if sites have google ads on them without me having to go to each site and look for it.
SEOquake has all these options under each site -in the google search page- telling me about ranking and everything, I need something like that but it only has to tell me yes or no if the site has google ads.
Does anyone know if there is anything like that out there?
If not maybe i need to find a coder to make it for me...

Why would you want such feature.

So that I dont need to go and open every page to see who has advertising on their site (if I wanna put ads on there)