Examine source code of ABC JS-CSS Injector

{
  "name": "ABC JS-CSS Injector",
  "version": "1.0",
  "description": "A injector extension for Firefox users.",
  "permissions": [
    "storage",
    "activeTab"
  ],
  "options_page": "/options.html",
  "background": {
    "scripts": [
      "/background.js"
    ],
    "persistent": false
  },
  "icons": {
    "15": "/images/JS-CSS-Injector15x15-BG.png",
    "45": "/images/JS-CSS-Injector45x45-BG.png",
    "128": "/images/JS-CSS-Injector128x128-BG.png",
    "512": "/images/JS-CSS-Injector512x512-BG.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "css": [
        "/content/content.css"
      ],
      "js": [
        "/content/content.js"
      ]
    }
  ],
  "options_ui": {
    "page": "options.html",
    "browser_style": true
  },
  "browser_action": {
    "default_title": "ABC JS-CSS Injector",
    "default_popup": "/popup/popup.html"
  },
  "manifest_version": 2
}