How often do adsense ads get screened?

I was at a friend's and wanted to discuss one of my websites. I noticed that the google ads weren't showing. I checked my other sites and none there either. Back home and everything looks fine (all adsense showing).

Are many computers programmed to exclude google adsense? What percentage of screens don't show them?

What would my friend have to do to see the ads on her computer?

Is there a thread on here that discusses the problem?

 

Your Problem can only be solved by emailing adsense support !

And remember adsense is blocked if you are using proxy sites to browse websites.

 

i agree; adsense support is usually very responsive.

 

I think your friend was probably running an adblocker!

 

Or maybe had java script turned off??

 

my moneys on that, if they were running norton, or something like that it can also block ads

 

is there a thread on here anywhere about adblocker?

 

never heard actually, unless you use customised rules.

 

check all pop up blocker, antivirus and those antispyware. some of them always disable adsense.

 

Is there a list of programmes that disable adsense?

 

so google ads get blocked by firefox?

 

No, unless visitors are using "ad-block".

 

ad blocker.. probably.
Firefox have a extension called AdBlockPlus..