Examine source code of Seum Auto Correct

{
  "name": "Seum Auto Correct",
  "version": "0.2resigned1",
  "manifest_version": 2,
  "description": "T'as le seum",
  "icons": {
    "128": "128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "js/correct.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{0e7a5a5b-18e8-4fd5-99d6-51a8cd9c9d02}"
    }
  }
}