Examine source code of Stop Redirecting Me

{
  "manifest_version": 2,
  "name": "Stop Redirecting Me",
  "version": "1.0.0",
  "description": "For sites you enable it on, blocks any attempt to open a new tab or redirect you to a new link until you confirm the destination in a popup.",
  "icons": {
    "48": "icons/icon.svg",
    "96": "icons/icon.svg"
  },
  "permissions": [
    "storage",
    "tabs",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    }
  ],
  "web_accessible_resources": [
    "injected.js"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "Stop Redirecting Me",
    "default_icon": {
      "48": "icons/icon.svg",
      "96": "icons/icon.svg"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "stop-redirecting-me@local.extension",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      },
      "strict_min_version": "91.0"
    }
  }
}