hello, conduit is a known adware creator and no part of mozilla. 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.

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

afterwards install the search reset addon - it will revert the most common customizations those adware programs do in firefox back to the default: https://addons.mozilla.org/firefox/addon/searchreset/

A little background info about that Conduit.
http://en.wikipedia.org/wiki/Conduit_%28publisher_network_and_platform%29#Browser_hijacker

The homepage for those Conduit toolbars is here,
http://toolbar.conduit.com/

Thanks so much for the additional information on conduit.com products! I am not very computer smart and feel really taken advantage of at times...glad, with your help, I got rid of the unwanted toolbar for VAF-Bing <search.conduit.com>.