Examine source code of PA Word Fixer

{
  "manifest_version": 2,
  "name": "PA Word Fixer",
  "version": "1.1",
  "description": "Changes woife to wife. It sounds petty but it really annoys me when someone uses the word so instead of telling them that it bothers me I just wrote a simple script to remove it.",
  "content_scripts": [
    {
      "matches": [
        "*://*.forums.penny-arcade.com/*"
      ],
      "js": [
        "word-fixer.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "urahonky@gmail.com"
    }
  }
}