 
       firefox_uproxy: {
         files: [ {
-          src: ['build/firefox/data/core/uproxy.js'
-                'build/firefox/lib/exports.js']
-          dest: 'build/firefox/lib/uproxy.js'
+          src: [firefoxDevPath + 'data/core/uproxy.js'
+                firefoxDevPath + 'lib/exports.js']
+          dest: firefoxDevPath + 'lib/uproxy.js'
         } ]
       }
 

          outfile: 'build/dev/generic_ui/_SpecRunner.html'
          keepRunner: true

    clean: ['build/**']

 # grunt.initConfig

  #-------------------------------------------------------------------------
  grunt.loadNpmTasks 'grunt-contrib-clean'
  grunt.loadNpmTasks 'grunt-contrib-concat'
  grunt.loadNpmTasks 'grunt-contrib-copy'
  grunt.loadNpmTasks 'grunt-contrib-jasmine'

    'build_generic_ui'
    'build_generic_core'
    'typescript:firefox'
    'copy:firefox'
  ]

  taskManager.add 'build_firefox_xpi', [
