Mr Stuart Parmenter, Director of Mobile Engineering at Mozilla said today on the blog Monday, March 22, 2010, the reason for this is Microsoft has decided to block installation of applications running on the computer to use the smartphone operating system Windows Phone 7 new.

Mozilla has prepared a development version of Firefox for Windows Mobile, and will also make the browser into a great browser on Windows 7 Phone, like what they've done is for Windows CE 6. But if you do not have software development kit for applications for computer, Mozilla is hard to proceed further.

Week at the Mix conference, Microsoft announced that it will only support development of applications running in the Silverlight runtime environment or the game running in XNA Game Studio runtime environment. Microsoft will not allow developers to apply third-party intervention directly to the hardware of the device, under which they can exploit the potential of the machine more.

However, he Parmenter hopes Microsoft will provide a way to build Mozilla Firefox browser for Windows OS Phone 7. Mozilla said that Windows 7 Phone interface attractive and may be selling.

At this time, Mozilla will attempt to accrue about version of Firefox released for phones running Android OS and browser version being used for Maemo, OS used in Nokia N900 mobile phone first. Browser was released on January 29, 2010.
Firefox for Android OS is still pre-alpha version, that is still in early stages is developed. Pre-alpha version was perfect for Motorola and Google droid Nexus One.