Examine source code of Rate Code

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  "browser_specific_settings": {
    "gecko": {
      "id": "{50e52a4b-b2e1-4d23-ad0d-c73842575dbb}"
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      "512": "assets/icons/favicon-512.png"
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        "js/contentScript.bundle.js"
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        "css/contentScript.css"
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    }
  ]
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