I was reading about hash functions on Wikipedia when this ad popped up. I was appalled and flabbergasted and annoyed to find advertisements akin to this one dotting my article like sprinkles on a cupcake.

Annoying popups appear after you hover over them.

Annoying ads on Wikipedia

I now notice that these ads are appearing on any web page I visit including Superuser.

Why? How can I get rid of them?

By the way, these ads have the very gall to surface on Superuser, as seen here: Ads on superuser

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    Do you have any extensions installed? If so, one of them is doing this. – Paul Jan 10 '12 at 4:41
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    Wow, that was it. I had a malicious extension called "GameVance" installed. Thank you for bringing that up and solving the problem! – David Faux Jan 10 '12 at 4:44
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    Great, I have added it as an answer if you want to accept or upvote it. Or provide your own answer as you identified the extension and accept your own answer. – Paul Jan 10 '12 at 4:49
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    This is sort of obvious that "GameVance" was doing this considering there is a huge "GameVance" logo in nearly every pop-up in that screenshot. – Ramhound Jan 10 '12 at 15:07

This is usually caused by "malicious" extensions, and removing the extension will normally solve the problem.

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    Some other malicious extensions: bing toolbar, ask toolbar, any toolbar. :( – Demolishun Jan 10 '12 at 8:15
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    This. Don't just remove the extension, but do an anti-virus/anti-malware scan on your computer. Most of the time, if you have something like this, there is also something else hidden on your computer. – Nicholas Jan 10 '12 at 17:45
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    @Demolishun Bookmarks toolbar? (Well, I suppose, if it has Facebook on it...) – Izkata Jan 10 '12 at 21:51
  • I think this is called Adware. – styfle Jan 11 '12 at 6:09

It looks like someone downloaded a "free game" that came with some scummy advertising stuff. Just uninstalling the plugin won't get rid of everything:

Luckily, from the sounds of it, they're pretty good about actually uninstalling when you uninstall.


In case the official instructions don't work, or even if they do, you might want to run an adware removal tool such as Ad-Aware. For every piece of malware that asserts its existence you are likely to have a dozen or so that do not.


Can also be because that website was running short of money and decided to accept ads - Wikipedia in particular was running short of money, but I have no information on whether they decided to accept ads.

If so, an antivirus program or an antispyware program will probably NOT remove the ads.

I've found a program that claims to remove even those, but I haven't tried it:


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    If you look at the screenshots, it is clear that the ads stem from adware or a rogue extension. – iglvzx Jan 11 '12 at 5:59

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