Websteroids keeps coming back

Hi, Im new to this support group thing, I downloaded Skype and a whole bunch of stuff got installed as well, Websteroids being one of them, Im using Windows Vista and Firefox (latest vesrion) and as has been said Ive done multiple things listed above, such as disabling/removing the addon, uninstalled the programs on installed on 12/4/2013 (day Skype was installed), but I cant find ANYTHING related to websteroids in my program files and yet it still keeps appearing in my Toolbars, and keeps showing its ugly little face everytime I open Firefox. And now when I run a completely unrelated program (a game for example) it slows down CONSIDERABLY.

Malware - short for malicious software - is an umbrella term that refers to any software program deliberately created to perform an unauthorized and often harmful action.
Viruses, backdoors, keyloggers, spyware ,adware, rootkits, and trojans are just a few examples of what is considered malware.
A few years ago,it was once sufficient to call something a 'virus' or 'trojan horse', however today's infection methods and vectors evolved and the terms 'virus and trojan' no longer provided a satisfactory definition for all the types of rogue programs that exist.

Spyware usually finds its way onto your computer without your knowledge or permission. It runs in the background, collecting information or monitoring your activities. A lot of spyware harvests information related to your computer and how you use it. For example, it may monitor your Web browsing patterns. However, more sophisticated forms of spyware have been known to capture and transmit highly personal information to identity thieves, from your website passwords and usernames to your credit card numbers or copies of your instant messages.

Websteroids keeps coming back

websteroids keeps coming back