Examine source code of Linkdaily

{
  "manifest_version": 2,
  "name": "Linkdaily",
  "version": "1.0.0",
  "permissions": [
    "tabs"
  ],
  "description": "Allows user to add current tab url to Linkdaily as a new link with one click.",
  "icons": {
    "16": "/imgs/logo.png",
    "32": "/imgs/logo.png",
    "48": "/imgs/logo.png",
    "128": "/imgs/logo.png"
  },
  "browser_action": {
    "default_icon": "/imgs/logo.png",
    "default_title": "Linkdaily",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "exclude_matches": [
        "*://linkdaily.com/admin*"
      ],
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "./js/popup.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{7128dc63-cf14-442e-ac99-72a3702dc73b}"
    }
  }
}