Try this first:

orange Firefox button (or Tools menu) > Add-ons > Extensions category

Does the Omnibar extension have a Remove button? If so, click Remove and restart Firefox and you should be done.

If it has a Disable button but not a Remove button, you may need to uninstall through the Windows Control Panel.

Any luck?

More info: Disable or remove Add-ons

Regarding Ask, is it affecting the search box with the icon at the left, or the URL bar?

For changing to Google search instead of Ask, click on the Ask.com icon. If there is an option to change it to Google.com instead, you can click that. If not, click on 'manage search engines' then click 'add more search engines near the bottom of the menu that appears. There should be an extension to add Google.

Actually I ended up resetting Firefox settings under HELP > Troubleshooting which appears to have removed the Omnibar and restored the search bar but thnx this was good direction for future use

 ; ~ )   doug

Hi doug, the Reset feature creates a folder on your desktop named Old Firefox Data. I suggest retaining that for a couple of weeks in case you discover something important missing from your new slimmed-down Firefox. If so, please post about it so we can assist with recovering the relevant part of your old data folder.