Gmail sender favicons (domain icons)

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Gmail sender favicons (domain icons)",
  "version": "0.121",
  "description": "Display domain favicons in Gmail list view",
  "homepage_url": "http://www.lorinhalpert.com",
  "author": "Lorin Halpert",
  "icons": {
    "128": "icon.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://mail.google.com/*"
      ],
      "js": [
        "inboxsdk.js",
        "content.js"
      ],
      "css": [
        "favicons.css"
      ],
      "run_at": "document_end"
    }
  ],
  "permissions": [
    "https://mail.google.com/"
  ],
  "web_accessible_resources": [
    "*"
  ]
}