Examine source code of Purvice

{
  "name": "Purvice",
  "description": "We Found better deals for your Product",
  "version": "1.1.1",
  "manifest_version": 2,
  "browser_action": {
    "default_icon": {
      "16": "purvice.ico",
      "32": "purvice.ico"
    },
    "default_popup": "index.html",
    "default_title": "Purchase Advice"
  },
  "icons": {
    "16": "purvice.ico",
    "32": "purvice.ico",
    "48": "purvice.ico",
    "128": "purvice.ico"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "88.0"
    }
  },
  "content_security_policy": "script-src 'self' 'unsafe-eval'; object-src 'self'",
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "contentScript.js"
      ]
    }
  ],
  "permissions": [
    "activeTab",
    "<all_urls>",
    "tabs"
  ]
}