Green circle with a check in it in google seach results ???

There used to be a more appropriate forum on gamespot for this kind of question but that got the shaft with the new design so i'm asking for help here.

Since today, I noticed that in google when I search something, an green circle with a check icon will appear next to the results, like this :

http://1.bp.blogspot.com/_UXTYEUoqWnQ/SXvuOu19zFI/AAAAAAAABoY/xVPsHaLb-y0/s400/mcafee-siteadvisor-google.png

I have no idea wtf that is, I haven't installed any new programs or change any options in IE.

Now the problem I have with is, when I click the mouse wheel button to open the page in a new tab, it opens on the home page of google. Even when I right click and select open in new tab, it doesn't open the link but simply opens a new google home page in the tab.

I have no idea if those green checks are for anything, all I know is since today, and I even say a couple of hours ago, I didn't have those green shit and my IE used to work fine.

Can someone help me out with this please ?

Thanks.

Oh yeah and the only protection I have besides from MS security suits is Avast.

Its the SafeSearch thing.

Green check=no threat on the site. You probably downloaded some freeware and it got installed without you knowing.

I think Avast has an option to enable Safe Search on browsers.

Saying that, you shouldn't have two antiviruses running at the same time. They can clash with one another and makes matters worse.

I think he means the default Windows firewall and Defender thing that everyone has.

That is correct, I meant the firewall of windows.

I tried to look in avast for a browser safe thingy, couldn't find it, i'll look again.

But you might be right, I did click on something on the latest avast update that I usualy don't do.

Ok well it was indeed my avast online security thingy acting up. I didn't know how to turn it off tho so I just uninstalled avast and reinstalled it without activating web security thingy.

Thx guys.