Examine source code of PDF Digest Sidebar

{
  "manifest_version": 3,
  "name": "__MSG_extensionName__",
  "version": "1.0",
  "description": "__MSG_extensionDescription__",
  "permissions": [
    "storage",
    "activeTab",
    "scripting"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "sidebar_action": {
    "default_title": "Ask PDF Sidebar",
    "default_panel": "sidebar.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "128": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b1e5a0c3-5d8e-3d0e-3f1c-1b0f28dfd7cd}"
    }
  }
}