Examine source code of Mail Safe

{
  "manifest_version": 2,
  "name": "MailSafe",
  "version": "1.0",
  "description": "Stay safe from phishing and email scams with these tips.",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "MailSafe"
  },
  "permissions": [
    "activeTab"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "mailsafe@example.com",
      "strict_min_version": "109.0"
    }
  }
}