Examine source code of Flash Insights

{
  "manifest_version": 2,
  "name": "Flash Insights",
  "version": "1.5",
  "description": "Capture insights from web & videos fast with Flash Insights. Efficient extension for summaries & improved browsing.",
  "permissions": [
    "clipboardWrite",
    "activeTab",
    "<all_urls>",
    "contextMenus"
  ],
  "icons": {
    "16": "icon-16.png",
    "48": "icon-48.png",
    "128": "icon-128.png",
    "512": "icon-512.png"
  },
  "browser_action": {
    "default_icon": {
      "16": "icon-16.png",
      "48": "icon-48.png",
      "128": "icon-128.png",
      "512": "icon-512.png"
    },
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "browser-polyfill.js",
        "content.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{32891274-9082-48ae-91cb-6ae83f133600}"
    }
  }
}