Mozilla says this is part of providing a more "local" experience -- until now, the company defaulted to Google search regardless of the user's country. Now the default search engine will be assigned by region: Yahoo for the United States, Yandex search for Russia and Baidu for China. Each region will have the ability to switch to other local options as well, giving Googlers a chance to switch back if they so desire.
Yahoo's Marissa Mayer says that the deal will allow the two firms to work more closely together on future product integration, a process it's starting with Yahoo search: starting in December, Firefox users will become the first folks with access to a new, more immersive Yahoo. This promises to have a cleaner, more interactive interfaces with a heavier focus on personalization
