You can modify the pref keyword.URL on the about:config page to use Google's "I'm Feeling Lucky" or Google's "Browse By Name".

• Google "I'm Feeling Lucky": http://www.google.com/search?btnI=I%27m+Feeling+Lucky&ie=UTF-8&oe=UTF-8&q=
• Google "Browse by Name": http://www.google.com/search?ie=UTF-8&sourceid=navclient&gfns=1&q=

• http://kb.mozillazine.org/keyword.URL
• http://kb.mozillazine.org/Location_Bar_search

Hiho cor-el, thanks for the answer, although it is to a different question :-)

Works fine here on Linux with Firefox 3.6.x and Firefox 4.0.1 and Firefox 5.0a2 with mozilla.com on the clipboard.

splendid. What do you recommend?

Why they would go through extra work to remove valuable functionality is beyond me, but I tracked down a fix for anybody who's interested. First, if you're running Ubuntu, disable "Ubuntu Firefox Modifications." If you don't it'll reset Firefox's middlemouse.contentLoadURL to false every time you restart (at least it did for me). Then, follow the how-to here:

http://shallowsky.com/blog/tech/web/

It's a little bit touch and go but not too bad, especially if you have an editor that can navigate .zip files. You have to edit a javaScript file inside a .jar (which is just a .zip by a different name). Anyway I hope this helps. One note, the how-to refers to /usr/lib/firefox-4.0/omni.jar, but you should replace 4.0 with whatever version you happen to have (ie. /usr/lib/firefox-4.0.1/). Also, they recommend deleting XUL.mfasl. You'll find that in your home directory under .mozilla/firefox/[profile hash or whatever that is].default/

troyvit, you are a genius! Your fix works! I actually was also looking into the omni.jar already, but my javascript capabilities are bad, and I ran into the same problem that ff would not load the new jar, so eventually I gave up. But now everything works. And yes, totally, I really wonder myself why a new major version of ff always comes with a degradation of basic functionality.

Thanks a lot for this!

http://shallowsky.com/blog/tech/web/

Unfortunately this tip didn't help me =(

I've patched omni.jar, removed in turn extensions.sqlite and XUL.mfasl, but FF5.0 still doesn't want to load urls without protocol prefix =(

Anyone found another solution?

yermulnik, I don't know about ff 5, but I just added a slightly modified patch to the ff6 omni.jar, and it worked again (after removing the XUL.mfasl from the profile directory, that is). I think my modification of the patch is not really relevant, so perhaps just try again with the old one. It might be necessary though to apply the changes in the patch manually in an editor, using patch might not work.