The browse by name feature was added into the about:config using http://www.google.com/search?ie=UTF-8&sourceid=navclient&gfns=1&q= for the Keyword.URL string. This has stopped working for me now.
The Keyword.URL string in about:config was self edited to have the browse by name feature previous versions of firefox had. The current string says the following http://www.google.com/search?ie=UTF-8&sourceid=navclient&gfns=1&q= . This worked while I was at school but now that I am home when I type in a keyword it redirects me to my ISP's search page which is not what I want. For example I was previously able to type in facebook or google and it would direct me straight to that page or if there were no exact matches it would show me the google search for it. Now it shows just a search page sponsored by Optimum Online for each term I enter into the bar, including the obvious ones such as facebook or google.
Opaite Mbohovái (1)
You may have an ISP that automatically redirects you to a search page if a DNS look up fails. That takes the control from Firefox to do the normal keyword search like a Google I'm Lucky search. In such cases you need to contact your ISP and ask for a DNS server to opt-out of that feature. You can also check if there is a link on the search results page to go to your ISP and opt-out.
Optimum Online: http://www.optimum.net/Article/DNS
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