Code Injector

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Code Injector",
  "description": "Inject your code (html, css, js) into page.",
  "manifest_version": 2,
  "version": "1.14",
  "icons": {
    "16": "assets/icons/icon16.png",
    "48": "assets/icons/icon48.png",
    "128": "assets/icons/icon128.png"
  },
  "permissions": [
    "downloads",
    "storage",
    "unlimitedStorage",
    "tabs",
    "http://*/*",
    "https://*/*"
  ],
  "browser_action": {
    "default_title": "Code Injector",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "functions.js",
        "config.js",
        "background.js"
      ],
      "run_at": "document_end"
    }
  ],
  "options_ui": {
    "page": "options.html",
    "chrome_style": true
  }
}