My Scroll Button

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "My Scroll Button",
  "version": "2017.11.15",
  "description": "Simply scrolling to top or bottom",
  "icons": {
    "16": "icon-ext-48.png",
    "48": "icon-ext-48.png",
    "128": "icon-ext-48.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "content_script.js"
      ],
      "css": [
        "content_script.css"
      ]
    }
  ],
  "browser_action": {
    "default_icon": "icon-ext-48.png",
    "default_popup": "browser_action.html"
  },
  "web_accessible_resources": [
    "icon-up.png"
  ],
  "permissions": [
    "storage",
    "activeTab"
  ],
  "manifest_version": 2
}