Firefox 3.6.13 - Is this adware or similiar? If so, must I reinstall Firefox?

Again I ask: Any suggestions or replies?  If so, how will I retrieve them or know when they are posted? 

"I am getting redirected to a site called "Find Stuff" so very frequently. I know it isn't right, but neither Anti-malware or virus protection finds anything. This only happens with Firefox. Any suggestions? Is this adware or similiar? If so, must I reinstall Firefox?" ----------------------------------------------------------- I posted the above question regarding the redirection of My browser (Firefox 3.6.13). It has since affected other browsers I have availiable and use from time to time. I assume this must not be limited to Firefox? I was unable to find My posted question answered. Is this an apparent virus or malware issue? My security software (McAfee/Microsoft Essentials)still does not detect any such problem. The forum gives information that 3 people have this problem, 1 new this week. Again I ask: Any suggestions or replies? If so, how will I retrieve them or know when they are posted? Thank You, Jake