Examine source code of Defense Escape for Sheets

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  "name": "__MSG_ext_name__",
  "description": "__MSG_ext_description__",
  "version": "1.3.1",
  "icons": {
    "16": "icons/16.png",
    "32": "icons/32.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  },
  "default_locale": "en",
  "content_scripts": [
    {
      "matches": [
        "https://app.box.com/integrations/googledss/openGoogleEditor",
        "https://docs.google.com/spreadsheets/d/*"
      ],
      "run_at": "document_end",
      "js": [
        "content-scripts/google.js"
      ]
    },
    {
      "matches": [
        "https://app.box.com/integrations/officeonline/openOfficeOnline*",
        "https://www.dropbox.com/c/scl/fi/*/*.xlsx*",
        "https://www.dropbox.com/scl/fi/*/*.xlsx*"
      ],
      "run_at": "document_start",
      "js": [
        "content-scripts/iframe.js"
      ]
    },
    {
      "matches": [
        "https://excel.officeapps.live.com/*",
        "https://pjp1-excel.officeapps.live.com/*"
      ],
      "all_frames": true,
      "run_at": "document_end",
      "js": [
        "content-scripts/microsoft.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{831f4cd1-24e8-4011-9a42-fff8beaffc22}"
    }
  }
}