Inject Javascript -- Synced & Open Source

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Inject Javascript -- Synced & Open Source",
  "version": "1.1",
  "description": "Inject javascript in web pages, synced across your devices",
  "permissions": [
    "activeTab",
    "storage"
  ],
  "options_page": "options.html",
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "css": [],
      "js": [
        "contentScript.js"
      ]
    }
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "72": "images/icon-72x72.png",
      "128": "images/icon-128x128.png",
      "512": "images/icon-512x512.png"
    }
  },
  "icons": {
    "72": "images/icon-72x72.png",
    "128": "images/icon-128x128.png",
    "512": "images/icon-512x512.png"
  },
  "manifest_version": 2
}