Examine source code of SEO Hero

{
  "manifest_version": 2,
  "name": "SEO Hero (https://seoheronews.com)",
  "short_name": "SEO Hero (https://seoheronews.com)",
  "version": "1.4resigned1",
  "description": "Google, SEO, Wix, Search Marketing News and Blogs by SEO Hero | https://seoheronews.com",
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "64": "icon64.png",
    "128": "icon128.png"
  },
  "browser_action": {
    "default_title": "seoheronews.com",
    "default_icon": "favicon.png",
    "default_popup": "popup.html"
  },
  "permissions": [
    "tabs",
    "https://seoheronews.com/*",
    "storage"
  ],
  "background": {
    "page": "background.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{bed8d6e3-5256-41e7-8682-d23ab0433d7d}"
    }
  }
}