Mozilla has announced the availability of a customised version of its open source Firefox web browser that uses Microsoft's Bing search engine. In addition to using Bing by default in the search box and AwesomeBar, the default home page is also set to Bing.com. In a blog post, Mozilla says that the Firefox with Bing offering extends its previous Microsoft partnership from October of last year, which saw Bing added as an optional search engine in the browser with Google remaining the default choice.