Examine source code of ModerationHelper

{
  "manifest_version": 2,
  "name": "ModerationHelper",
  "version": "1.4",
  "description": "Helpfull small improvements for phpbb forums",
  "permissions": [
    "contextMenus"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.formel1.de/forum/*"
      ],
      "js": [
        "js/functions.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "js/background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{bb28c538-a596-456e-823a-35ec3469c95c}"
    }
  }
}