Examine source code of RTO Remote Tab Opener – Controlled Tab Manager

{
  "manifest_version": 3,
  "name": "Remote Tab Opener Manager",
  "short_name": "RTO Manager",
  "version": "8.4.0",
  "description": "Open and control browser tabs securely via a local extension bridge. Firefox hotfix for content script loading. Adds native inter-extension Bridge API without changing standalone RTO behavior.",
  "browser_specific_settings": {
    "gecko": {
      "id": "{a9ec3fbf-a530-42a2-896e-ec3e46220d3e}",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "19": "icons/icon19.png",
    "32": "icons/icon32.png",
    "38": "icons/icon38.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "action": {
    "default_title": "RTOM",
    "default_popup": "ui/popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "19": "icons/icon19.png",
      "32": "icons/icon32.png",
      "38": "icons/icon38.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "web_accessible_resources": [
    {
      "resources": [
        "icons/icon16.png",
        "icons/icon19.png",
        "icons/icon32.png",
        "icons/icon38.png",
        "icons/icon48.png",
        "icons/icon128.png",
        "src/content/content.js",
        "src/content/content_master.js"
      ],
      "matches": [
        "http://*/*",
        "https://*/*"
      ]
    }
  ],
  "background": {
    "scripts": [
      "src/common/background_helpers.js",
      "src/common/background_core.js",
      "src/common/background.js",
      "src/common/external_bridge_api.js"
    ]
  },
  "permissions": [
    "tabs",
    "storage",
    "scripting",
    "activeTab"
  ],
  "host_permissions": [
    "http://*/*",
    "https://*/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "src/content/content.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    },
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "src/content/content_master.js"
      ],
      "run_at": "document_idle",
      "all_frames": true
    }
  ]
}