This extension adds a star in Firefox extension to enable users see current calendar in 3 different formats, Baha'i Calendar, Persian(Shamsi) Calendar and Gregorian Calendar. By moving your mouse cursor on calendar icon you can see current dates. You can change the display format, It's available from context menu as an option.

Version Note 1.3: Fixing issue in Badi date calculation and new option to display date in status bar

Version Note 1.3.1: Fixing issue in Leap Years and Ayyam-i-Ha