Examine source code of UltraBlock - Ultimate AdBlocker

{
  "manifest_version": 2,
  "name": "ArenaBlock Pro - Ad Blocker by Arena Tech",
  "version": "3.0.0",
  "description": "99%-class ad & popup blocker by Arena Tech. Blocks YouTube ads, popups/popunders, banners, trackers, crypto miners, cookie banners, sponsored social posts. Element picker, per-site whitelist, custom filters, anti-adblock bypass.",
  "author": "Arena Tech",
  "homepage_url": "https://github.com/arenatech/arenablock",
  "permissions": [
    "<all_urls>",
    "webRequest",
    "webRequestBlocking",
    "storage",
    "tabs",
    "unlimitedStorage",
    "notifications",
    "contextMenus",
    "webNavigation"
  ],
  "background": {
    "scripts": [
      "background/blocklists.js",
      "background/background.js"
    ],
    "persistent": true
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content/generic.js",
        "content/advanced.js",
        "content/elementPicker.js"
      ],
      "css": [
        "content/cosmetic.css",
        "content/advanced.css"
      ],
      "run_at": "document_start",
      "all_frames": true
    },
    {
      "matches": [
        "*://*.youtube.com/*",
        "*://youtube.com/*",
        "*://*.youtu.be/*",
        "*://youtu.be/*",
        "*://*.youtube-nocookie.com/*",
        "*://*.twitch.tv/*",
        "*://*.facebook.com/*",
        "*://*.instagram.com/*",
        "*://*.tiktok.com/*",
        "*://*.x.com/*",
        "*://*.twitter.com/*",
        "*://*.reddit.com/*",
        "*://*.linkedin.com/*"
      ],
      "js": [
        "content/youtube.js",
        "content/social.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    }
  ],
  "browser_action": {
    "default_title": "ArenaBlock Pro - Blocking Ads",
    "default_popup": "popup/popup.html",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png",
      "96": "icons/icon-96.png"
    }
  },
  "options_ui": {
    "page": "options/options.html",
    "browser_style": true,
    "open_in_tab": true
  },
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png",
    "128": "icons/icon-128.png"
  },
  "web_accessible_resources": [
    "content/*.css",
    "content/*.js",
    "icons/*"
  ],
  "commands": {
    "_execute_browser_action": {
      "suggested_key": {
        "default": "Ctrl+Shift+U"
      },
      "description": "Open ArenaBlock popup"
    },
    "toggle-blocking": {
      "suggested_key": {
        "default": "Ctrl+Shift+B"
      },
      "description": "Toggle blocking on current site"
    },
    "pick-element": {
      "suggested_key": {
        "default": "Ctrl+Shift+E"
      },
      "description": "Pick element to block"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "ultrablock-pro@youtube.adblocker.ultimate",
      "strict_min_version": "91.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}