Examine source code of Link Popper

{
  "manifest_version": 2,
  "name": "Link Popper",
  "version": "1.4.2",
  "description": "A browser extension that lets you browse linked pages without leaving the current one.",
  "icons": {
    "16": "logo.png",
    "32": "logo.png",
    "48": "logo.png",
    "128": "logo.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "src/content/index.js"
      ]
    }
  ],
  "browser_action": {
    "default_popup": "src/popup/index.html"
  },
  "background": {
    "page": "background.html"
  },
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "<all_urls>",
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{a4ae78e4-6d6b-4b7e-b333-e74e31964021}"
    }
  },
  "web_accessible_resources": [
    "assets/jsxRuntime-da4908dc.css",
    "assets/jsxRuntime.module-c9342e0f.js",
    "assets/src/content/index-561d94e7.js",
    "assets/utils-8e5de5ac.js"
  ]
}