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manifest.json

{
  "theme": {
    "images": {
      "theme_frame": "Barra_Firefox_4.jpg"
    },
    "colors": {
      "frame": "#6fb1b3",
      "tab_background_text": "#97d9d2"
    }
  },
  "version": "2.0",
  "name": "Firefox 4.0",
  "manifest_version": 2
}