• In the location bar, type about:config and hit Enter.
  
  
• In the filter at the top, type: keyword.URL
  
  
• Double click it and remove whatever's in there and replace it with one of these:
  
  
• For Scroogle, enter http://www.scroogle.org/cgi-bin/nbbw.cgi?Gw=
  
  
• For Bing, enter http://bing.com/results.aspx?q=
  
  
• For Ixquick, enter http://ixquick.com/do/metasearch.pl?cat=web&query=
  
  
• For Yahoo!, enter http://search.yahoo.com/search?p=
  
  

The URL to add in "keyword.URL" becomes a link in this post, so right click it and choose "Copy Link Location" to copy it to the Windows clipboard. Then hit CTRL+V to paste it. Saves you having to type the whole thing.

To reset your home page, do the following.

• Go to the site you want to set as your homepage.
  
  
• Click the orange Firefox button and go to Options | Options | General (Firefox 4.0.x and above).
  
  
• Go to Tools | Options | General (Previous version of Firefox).
  
  
• Make sure it says "Show My Homepage" in the first dropdown menu.
  
  
• Click the button called "Use Current Pages" to set the homepage to the one you have on the screen.
  
  

After you complete the above steps, install this add-on to prevent another search engine from modifying your preferences: https://addons.mozilla.org/en-US/firefox/addon/browserprotect/

If one of the above search engines is not to your taste either, add the one you do want, but add /search?p= to the end of the URL to it otherwise it won't work.

Thanks for the response...

I did as asked. I also went into "manage search engines" again and deleted Google. I closed and re-opened Firefox and Google reappeared again as primary search engines even though I selected Bing as my search engines with your steps.

I appreciate your help.

Could you go back to about:config again and then in keyword.URL, remove the current Bing URL and replace it with this one: http://www.bing.com/search?q=

• Next, in the filter at the top, copy/paste: browser.search.selectedEngine
  
  
• Right click it and choose Modify.
  
  
• Remove Google and replace it with Bing

Thanks again for your continued suggestions...

I did as asked... and Google continues to re-appear after close and reopen my browser... I'm thinking of dumping Firefox all together... Though I like it, I don't trust Google...

Thanks...

There's an article which explains how to add/remove search engines here: Search bar - add, change and manage search engines on Firefox