Examine source code of Quick Skipper

{
  "manifest_version": 2,
  "name": "Quick Skipper",
  "version": "1.0.0",
  "description": "Skip intro, credits, or ads in videos using simple repeated-segment detection.",
  "permissions": [
    "activeTab"
  ],
  "browser_action": {
    "default_title": "Quick Skipper",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "quick-skipper@amo.local",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}