Examine source code of FullTube

{
  "manifest_version": 2,
  "name": "FullTube",
  "version": "1.10resigned1",
  "description": "This a extension to maximize the youtube player size.",
  "icons": {
    "48": "icons/youtube.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.youtube.com/watch?v=**"
      ],
      "exclude_matches": [
        "https://www.youtube.com/watch?v=*&list=*&t=*s&index=**"
      ],
      "js": [
        "fulltube.js"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "https://www.youtube.com/watch?v=*&t=**"
      ],
      "exclude_matches": [
        "https://www.youtube.com/watch?v=*&list=*&t=*s&index=**"
      ],
      "js": [
        "fulltube_t.js"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "https://www.youtube.com/watch?time_continue=*&v=**"
      ],
      "exclude_matches": [
        "https://www.youtube.com/watch?v=*&list=*&t=*s&index=**"
      ],
      "js": [
        "fulltube_tc.js"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "https://www.youtube.com/watch?v=*&list=*&t=*s&index=**"
      ],
      "js": [
        "fulltube_pt.js"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "https://www.youtube.com/watch?v=*&**"
      ],
      "js": [
        "fulltube_pt.js"
      ],
      "run_at": "document_start"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{b0250297-bc31-4ad9-8183-83f5865277fb}"
    }
  }
}