Weird Links??

Yesterday I tried to download the Chess.com toolbar thing and, well, the download ended up being not the toolbar but some other type of software which started opening new popup windows and acting odd, so I deleted it and moved on.

Since then, Chess.com has been acting strange. Today I got on and a picture of a spaceship went across the screen. Then, there were popup ads showing, even though I have a membership. Finally, the links across the whole site have been redirecting me to some weird website, and random words (like in the picture) are orange and link off of the site?

Is there something wrong with the site or the toolbar download, or do I have a virus...? I have scanned my computer and nothing has shown up.

Oh and nothing has been happening on other websites and I am using Firefox 27.0.1 on Windows 7 if it matters.

@Bollybill- Try going into your add-ons on firefox and make sure that nothing is enabled there. Normally this is caused by an "enhanced search" type add-on. 

No, that does not fix anything. I only had ad-blocker anyway.

Ok I think I fixed it by going into the control panel and uninstalling some things from the past few days. However, the issue seemed to be connected to the Chess.com toolbar...