hello, this sounds like a problem with adware on your pc. please go to firefox > addons > extensions & remove any suspicious entries (toolbars, things that you have not installed intentionally, don't know what purpose they serve, etc). also go to the windows control panel / programs and remove all toolbars or potentially unwanted software from there and run a full scan of your system with the security software that you have in place and different other tools like the free version of malwarebytes & adwcleaner.

Remove a toolbar that has taken over your Firefox search or home page Troubleshoot Firefox issues caused by malware

Thanks I found the app that was causing the problem. It is called Yontoo and had several applications associated with it including drop down deals. I do not know where it came from but suspect it came with the latest version of Adobe Flash Player. Thanks again

Drop Down Deals is some nasty malware, not just adware. Based on what I've seen not only does it do the standard hijacking of the user's search and home pages, it also hijacks web site advertising and replaces adsense ads with its own.

See Info on this web-page http://www.shouldiremoveit.com/Deals-Plugin-19688-program.aspx

Accoring to the site "This software is detected by various anti-malware programs that typically flag it as adware or a potentially unwanted program. It is typically included in various 3rd party software bundles. When you install the plug-in, it also has a background process that will attempt to disabled other 'conficting' extensions that might interfere with it, this includes other competing products as well as some security products"

Pretty scary!