Examine source code of SaveFrom.net helper all-in-1 / youtube downloader

{
  "manifest_version": 2,
  "name": "__MSG_extName__",
  "description": "__MSG_extDescription__",
  "author": "Itproductdev Ltd",
  "version": "10.56",
  "default_locale": "en",
  "icons": {
    "16": "img/icon_16.png",
    "48": "img/icon_48.png",
    "128": "img/icon_128.png"
  },
  "browser_action": {
    "default_icon": {
      "19": "img/icon_19.png",
      "38": "img/icon_38.png"
    },
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "js/background.js"
    ]
  },
  "permissions": [
    "tabs",
    "downloads",
    "storage",
    "<all_urls>",
    "webRequest",
    "webRequestBlocking"
  ],
  "web_accessible_resources": [
    "img/*",
    "locales/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.vimeo.com/*"
      ],
      "js": [
        "includes/commons.js",
        "includes/vimeo_com.js"
      ],
      "run_at": "document_end",
      "all_frames": true
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "include_globs": [
        "http://dailymotion.*/*",
        "http://*.dailymotion.*/*",
        "https://dailymotion.*/*",
        "https://*.dailymotion.*/*"
      ],
      "js": [
        "includes/commons.js",
        "includes/dailymotion_com.js"
      ],
      "run_at": "document_end",
      "all_frames": true
    },
    {
      "matches": [
        "*://*.youtube.com/*"
      ],
      "exclude_matches": [
        "*://accounts.youtube.com/*"
      ],
      "js": [
        "includes/commons.js",
        "includes/youtube_com.js"
      ],
      "run_at": "document_end",
      "all_frames": true
    },
    {
      "matches": [
        "*://*.soundcloud.com/*"
      ],
      "js": [
        "includes/commons.js",
        "includes/soundcloud_com.js"
      ],
      "run_at": "document_end"
    },
    {
      "matches": [
        "*://*.vk.com/*",
        "*://*.vkontakte.ru/*",
        "*://*.vkvideo.ru/*",
        "*://*.vk.ru/*"
      ],
      "exclude_matches": [
        "*://queuev4.vk.com/*",
        "*://queuev4.vkontakte.ru/*"
      ],
      "js": [
        "includes/commons.js",
        "includes/vkontakte_ru.js"
      ],
      "run_at": "document_end",
      "all_frames": true
    },
    {
      "matches": [
        "*://*.ok.ru/*",
        "*://*.odnoklassniki.ru/*"
      ],
      "js": [
        "includes/commons.js",
        "includes/odnoklassniki_ru.js"
      ],
      "run_at": "document_end"
    },
    {
      "matches": [
        "*://my.mail.ru/*"
      ],
      "js": [
        "includes/commons.js",
        "includes/mail_ru.js"
      ],
      "run_at": "document_end"
    },
    {
      "matches": [
        "*://*.facebook.com/*"
      ],
      "js": [
        "includes/commons.js",
        "includes/facebook_com.js"
      ],
      "run_at": "document_end"
    },
    {
      "matches": [
        "*://*.savefrom.net/*"
      ],
      "js": [
        "includes/commons.js",
        "includes/savefrom_net.js"
      ],
      "run_at": "document_end"
    },
    {
      "matches": [
        "*://*.instagram.com/*"
      ],
      "js": [
        "includes/commons.js",
        "includes/instagram_com.js"
      ],
      "run_at": "document_end",
      "all_frames": true
    },
    {
      "matches": [
        "*://*.rutube.ru/*"
      ],
      "js": [
        "includes/commons.js",
        "includes/rutube_ru.js"
      ],
      "run_at": "document_end",
      "all_frames": true
    },
    {
      "matches": [
        "*://*.tiktok.com/*"
      ],
      "js": [
        "includes/commons.js",
        "includes/tiktok_com.js"
      ],
      "run_at": "document_end",
      "all_frames": true
    },
    {
      "matches": [
        "*://music.yandex.ru/*",
        "*://music.yandex.by/*",
        "*://music.yandex.com/*",
        "*://music.yandex.ua/*",
        "*://music.yandex.kz/*",
        "*://music.yandex.uz/*",
        "*://music.yandex.az/*",
        "*://music.yandex.tr/*",
        "*://music.yandex.am/*",
        "*://music.yandex.ge/*"
      ],
      "js": [
        "includes/commons.js",
        "includes/yandex_music.js"
      ],
      "run_at": "document_end",
      "all_frames": true
    },
    {
      "matches": [
        "*://*.twitch.tv/*"
      ],
      "js": [
        "includes/commons.js",
        "includes/twitch_tv.js"
      ],
      "run_at": "document_end",
      "all_frames": true
    },
    {
      "matches": [
        "*://matchtv.ru/*"
      ],
      "js": [
        "includes/commons.js",
        "includes/match_tv.js"
      ],
      "run_at": "document_end",
      "all_frames": true
    },
    {
      "matches": [
        "*://x.com/*"
      ],
      "js": [
        "includes/commons.js",
        "includes/twitter_com.js"
      ],
      "run_at": "document_end",
      "all_frames": true
    },
    {
      "matches": [
        "*://sf-helper.net/*",
        "*://oauth2.televzr.com/*"
      ],
      "js": [
        "includes/commons.js",
        "includes/oauth_helper_net.js"
      ]
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "includes/tab.js"
      ],
      "run_at": "document_end"
    },
    {
      "matches": [
        "*://www.astrology.com/*"
      ],
      "js": [
        "includes/commons.js",
        "includes/astrology.js"
      ]
    },
    {
      "matches": [
        "*://astrologyvalley.com/*"
      ],
      "js": [
        "includes/commons.js",
        "includes/astrologyvalley.js"
      ]
    },
    {
      "matches": [
        "*://www.horoscope.com/us/*"
      ],
      "js": [
        "includes/commons.js",
        "includes/horoscope.js"
      ]
    }
  ],
  "applications": {
    "gecko": {
      "id": "helper@savefrom.net",
      "strict_min_version": "58.0"
    }
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  }
}