Mozilla said that "it submitted an app called "Firefox Home" to Apple for iTunes App Store approval, an application which would sync browser activity between the user's iPhone and desktop. It's not a separate browser, as Mozilla knows that Apple would likely reject it if it was. Instead, Firefox uses the WebKit API provided by Apple and intended for use in web browsing applications."
Firefox Home differentiates itself from other web browsing applications is the interactivity between the desktop browser and the iPhone. Users will be able to access their browser history, bookmarks, and even open tabs. The information is sent into the cloud, and iPhone app pulls the data it needs from there. Data can be either viewed within app, or using Safari Mobile.
Mozilla says that Firefox Sync is required to use Firefox Home when it becomes available. That free add-on for the browser is available from Mozilla's website.