Create & collaborate A/B Test variations

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Create & collaborate A/B Test variations",
  "description": "This extension injects custom css/js into a website. You can also send your test variation to your friend for review.",
  "version": "3.3",
  "icons": {
    "16": "icon-16x16.png",
    "32": "icon.png",
    "48": "icon-48X48.png",
    "128": "icon-128X128.png"
  },
  "browser_action": {
    "default_icon": "icon-48X48.png",
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "js/background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://*/*",
        "http://*/*"
      ],
      "js": [
        "js/jquery.min.js",
        "js/content.js"
      ],
      "run_at": "document_end"
    }
  ],
  "options_page": "options.html",
  "permissions": [
    "activeTab",
    "storage",
    "tabs"
  ]
}