Examine source code of reflect.

{
  "manifest_version": 2,
  "name": "reflect. - a mindful website blocker",
  "description": "a website blocker that asks users to reflect on their usage.",
  "version": "1.2.0",
  "options_page": "res/pages/options.html",
  "content_security_policy": "script-src 'self' 'unsafe-eval'; object-src 'self'",
  "background": {
    "scripts": [
      "src/background.js",
      "src/contextMenus.js",
      "src/util.js"
    ],
    "persistent": true
  },
  "icons": {
    "16": "res/icon.png",
    "48": "res/icon.png",
    "128": "res/icon.png"
  },
  "browser_action": {
    "default_icon": "res/icon.png",
    "default_popup": "res/pages/popup.html",
    "default_title": "open reflect. options"
  },
  "permissions": [
    "storage",
    "<all_urls>",
    "contextMenus",
    "tabs"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "jquery-3.4.1.min.js",
        "jquery-ui.min.js",
        "src/content.js"
      ],
      "run_at": "document_start"
    }
  ],
  "web_accessible_resources": [
    "res/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "hi@getreflect.app",
      "strict_min_version": "42.0"
    }
  }
}