My Firefox is blocking ads and I don't know why :(

I don't have any adblocker installed but I can't see any ads.
My extensions are:
Google toolbar,
Web developer toolbar,
Ook, video ook (ops )
Bloglines Toolkit
del.icio.us buttons
and
DOM Inspector and Talkback from Firefox directly.

What's happening then? I can see ads with Opera.

 

I've had similar problems to you, although I assumed it was Norton Internet Security on my girlfriends computer that did it. It really pisses me off as I can't use web messenger.

 

If you are talking about pop-up ads, then it is Google toolbar

 

Firefox has a built in option to block scripts, which adsense code is. Check your settings or search google for settings.

 

Seriously?

 

Firefox don't block google ads, unless you have installed extension to block ads.

 

I'm not speaking about popup, I don't see AdSense. For example this thread is completely adless.

 

Maybe you talking about pop ups?