PowerTab

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "PowerTab",
  "description": "Extend the default chrome tab support allowing among other things close tabs to the left, duplicate tab, background tabs.",
  "version": "1.0",
  "permissions": [
    "http://*/*",
    "https://*/*",
    "contextMenus",
    "clipboardWrite",
    "tabs"
  ],
  "icons": {
    "16": "icon16x16.png",
    "48": "icon48x48.png",
    "128": "icon128x128.png"
  },
  "browser_action": {
    "default_icon": "icon16x16.png",
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "eventPage.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*"
      ],
      "js": [
        "contentScript.js"
      ],
      "run_at": "document_start"
    }
  ]
}