Responder

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Responder",
  "version": "2.4",
  "manifest_version": 2,
  "author": "Jeff Kielman",
  "offline_enabled": true,
  "description": "Outlines the web pages grid and displays the width/height in both 'em' and 'px' units when toggled or resized.",
  "browser_action": {
    "default_icon": {
      "48": "assets/icon48.png"
    },
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "js": [
        "js/popup.js",
        "js/storage.js"
      ],
      "css": [
        "css/styles.css"
      ],
      "matches": [
        "http://*/*",
        "https://*/*",
        "<all_urls>",
        "*://*/*"
      ],
      "run_at": "document_end"
    }
  ],
  "homepage_url": "https://chrome.google.com/webstore/detail/responder/manambimfjdiabgefjmbnbjhjkmbgnop?hl=en",
  "icons": {
    "16": "assets/icon16.png",
    "48": "assets/icon48.png",
    "128": "assets/icon128.png"
  },
  "incognito": "split",
  "permissions": [
    "tabs",
    "activeTab",
    "http://*/",
    "storage",
    "https://*/",
    "contextMenus",
    "*://*/*"
  ],
  "web_accessible_resources": [
    "css/styles.css",
    "js/popup.js",
    "js/responder-sz.js",
    "js/responder.js",
    "js/storage.js"
  ]
}