Microsoft's Live Search team has released a search add-on for Firefox browser. You can use this add-on to get to your results faster via Microsoft Live Search auto suggestions.
Beatrice Oltean and Debapriya Ray have blogged about it on the Live Search blog: Live Search autosuggestions come to Firefox
" ..We're happy to report that we've officially integrated Live Search into Firefox by popular demand. The Live Search add-on for Firefox gives you auto-suggestions from Live Search right in the browser while you're typing your query ... It's based on the Open Search standard and uses the JSON interface supported by Firefox to retrieve autosuggestions...."
You can download the add-on from the Firefox Add-ons website. Direct link: Live Search 20090124. Support for this add-on is provided by the developer at http://search.live.com/developers or by sending an e-mail.