Mozilla and Microsoft are launching a new version of Firefox that defaults to Bing for its search options and homepage. The alternate version of the browser isn’t substantially different from the standard build — it just ships with the Bing add-on preinstalled. The stock version of Firefox continues to ship with Google, but that deal runs out in November, when Mozilla says it’ll “reassess” the situation; a change would be a huge boost to Bing and allow Mozilla to diversify its revenue sources.
Firefox with Bing integration announced by Microsoft and Mozilla
Bing integrated into new version of Firefox just before deal with Google expires
Bing integrated into new version of Firefox just before deal with Google expires


Mozilla has never been shy about exploring the complicated relationship between open and closed sourced products — the company says it has nearly 20 versions of Firefox including ones made in partnership with Twitter and Yahoo.
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