Hello Link | Email Sales Machine

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Hello Link | Email Sales Machine",
  "version": "1.2",
  "description": "Hello Link converts your Gmail emails into a sales machine.",
  "manifest_version": 2,
  "icons": {
    "16": "images/email16.png",
    "32": "images/email32.png",
    "48": "images/email48.png",
    "128": "images/email128.png"
  },
  "permissions": [
    "storage",
    "declarativeContent",
    "https://mail.google.com/"
  ],
  "page_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "images/email16.png",
      "32": "images/email32.png",
      "48": "images/email48.png",
      "128": "images/email128.png"
    }
  },
  "content_scripts": [
    {
      "all_frames": false,
      "run_at": "document_end",
      "matches": [
        "https://mail.google.com/*"
      ],
      "js": [
        "signature.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  }
}