A lot of firefox users also install Adblock Plus or NoScript, both of which can block AdSence. Make sure that javascript is enabled, and that none of these people have Adblock Plus or NoScript.

Other than that I'm not sure what's wrong. I'll let you know if I find anything.

Can't IE users can block ads too, if they want?

I'm continuing with the monitoring; I just checked, there was another click and it was from an IE user.

I'm not sure: I have never used IE

If this helps, the adsence site has been displaying weird on my browser.

I think that the problem is on adsence's end. Have you tried contacting them?

There's no Support for Google, like there's no Support for Firefox.

That's why we end up in forums like this one.

Anyway, if the problem is not with Safari, Chrome, IE and other browsers, but only on Firefox, we figure it's a Firefox problem.

Well, how about you folks visiting this forum, do you see AdSense ads in the sites you visit?

Thanks for your help.

Gina

This is firefox support.

Adsence adds appear on my computer, although the adsence site does not...

Christof, a forum is not Customer Support. It's more like the blind leading the blind...

Thanks for reporting on your situation.

I will continue monitoring.

Gina

My wife and I have the same issue. I do have Adblock+ installed but she uses a plain out-of-the-shelf FF with no adds installed. I disabled AB+ and even Greasemonkey but no joy.