Found a solution my self :-) http://kb.mozillazine.org/Location_Bar_search#Location_Bar_search_.28internal_-_Auto_Complete.29 Type about:config in the adress bar and filter for keyword.url and change the value to http://www.google.com/search?btnI=I%27m+Feeling+Lucky&ie=UTF-8&oe=UTF-8&q= Cheerio

There is a change in Firefox 4 in how Location bar search works. *'''''In Firefox 3.6.x''''', Location bar search uses Google "Browse by name" search. With the browse by name search, it performs a Google search and **if there is a clear match it will take you to the site **otherwise it shows the Google search result page *'''''Firefox 4's default''''' is **to perform a Google search and present the Google search results page '''''if''''' you type something which is not recognized as a URL **you must type a complete URL, such as www.youtube.com , to go directly to the site To get the Firefox 3.6.x behavior in Firefox 4. you need to change a hidden preference. #Type '''''about:config''''' into the location bar and press the Enter key #If you see a warning, zccept it (promise to be careful) #A list of preferences will open #Filter = keyword.URL #Double-click on that preference in the lower pane #A small window will appear; copy the line below and paste into the box in that small window (or type it into the box in that window '''''exactly''''' as shown below): http://www.google.com/search?ie=UTF-8&oe=UTF-8&sourceid=navclient&gfns=1&q= See: *http://kb.mozillazine.org/About:config *http://kb.mozillazine.org/Keyword.URL *http://kb.mozillazine.org/Location_Bar_search <br /> --------------------------- <br /> '''You need to update the following plugin(s):''' *Next Generation Java Plug-in 1.6.0_22 for Mozilla browsers #'''''Check your plugin versions''''' on either of the following links': #*http://www.mozilla.com/en-US/plugincheck/ #*https://www-trunk.stage.mozilla.com/en-US/plugincheck/ #*'''Note: plugin check page does not have information on all plugin versions''' #'''Update the [[Java]] plugin''' to the latest version. #*Download site: http://www.oracle.com/technetwork/java/javase/downloads/index.html (Java Platform: Download JRE) #**'''''Be sure to <u>un-check the Yahoo Toolbar</u> option during the install if you do not want it installed. #*Also see "Manual Update" in this article to update from the Java Control Panel in Windows Control Panel: http://support.mozilla.com/en-US/kb/Using+the+Java+plugin+with+Firefox#Updates #* Removing old versions (if needed): http://www.java.com/en/download/faq/remove_olderversions.xml #* Remove multiple Java Console extensions (if needed): http://kb.mozillazine.org/Firefox_:_FAQs_:_Install_Java#Multiple_Java_Console_extensions #*Java Test: http://www.java.com/en/download/help/testvm.xml