Nokia has shifted more to Windows mobile phone development.

http://en.wikipedia.org/wiki/Symbian On 1 January 2014, with Nokia shifting their developer support away from Symbian, developers will not be able to publish new Symbian applications or content into the Nokia Store.

This also helps makes it less enticing to make a mobile Firefox for Symbian now.

Mozilla has not worked on a symbian version for a long time now. https://wiki.mozilla.org/Mobile/Symbian

Hi vedant_pancholi

I am locking this question because Symbian is dead.

Cheers! (I miss Symbian too!)

...Roland