I'd like to change the default behavior of the location bar in Firefox to search Google unless I specifically enter a domain name, and I don't mean just changing the location bar from Google's 'feeling lucky' to a normal Google SERP.
Something else to try is going to about:config and then changing the keyword.URL value.
By default it is set to this:
Try changing it to this and see if it makes a difference:
kinda like the omnibar? Single search/url bar, which searches to a search engine of your choice unless its an exact url.
I have Firefox 3.5.2 and this is the default behavior. I haven't set up any features or settings. Maybe you have an old version, prior to them adding the 'smart bar' feature.. try updating here http://www.mozilla.com/en-US/firefox/personal.html
For user who prefer to see a list of matching websites or search results instead of auto redirect to a web page when entering keywords in the Firefox’s link location bar, it’s possible to change the Firefox behavior by modifying its configuration using steps below.
Enter about:config into the address bar.
Locate keyword.url or type keyword.url into “Filter” text box to search for it.
Double click on the line of “keyword.url”.
By default, the string value for “keyword.url” is “about:neterror?e=query&u=”. To display search results instead, replace the string with one of the following search statements, depending on the search engine you prefer (e.g. Google: http://www.google.com/search?q=)
Click OK when done.