Examine source code of SwiftRead Lite

{
  "manifest_version": 2,
  "name": "SwiftRead Lite",
  "version": "1.0",
  "description": "Speed reading extension for Firefox",
  "permissions": [
    "activeTab",
    "storage",
    "<all_urls>",
    "tabs"
  ],
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "css": [
        "styles/speedReader.css"
      ],
      "js": [
        "libs/jquery-3.7.1.min.js",
        "content.js"
      ],
      "run_at": "document_start"
    }
  ],
  "web_accessible_resources": [
    "utils/speedReader.js"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{6d249acf-6ca4-4032-988f-bf0aff173fe6}"
    }
  }
}