Examine source code of Ultimate Reddit Filter

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  },
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      "run_at": "document_start"
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        "_locales/pl/messages.json",
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        "_locales/uk/messages.json",
        "_locales/vi/messages.json",
        "_locales/zh_CN/messages.json"
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    "page": "53b05bb8e5.html",
    "open_in_tab": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "scriptsmith04@gmail.com",
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      "data_collection_permissions": {
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        "optional": []
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    }
  }
}