Create a firefox icon with version number in the icon.
This was created to be used for generating version-based icons for Install All Firefoxes shell script for OS X.
Requires ImageMagick and Ghostscript.
$ brew install imagemagick gs
To use:
$ create_firefox_image_with_version "26.0" fx26.png"
Note: Use png as file extension or you will get no transparency goodness.
Output: