Webfont Previewer

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Webfont Previewer",
  "description": "This extension allows you to test webfonts out on any website and target which elements the fonts should be applied to.",
  "version": "1.2",
  "icons": {
    "16": "icon.png",
    "48": "icon-48.png",
    "128": "icon.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "jquery.min.js",
        "content_scripts.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "jquery-2.0.3.min.map",
    "webfont.js",
    "fontmap.json"
  ],
  "permissions": [
    "tabs",
    "storage",
    "http://fonts.googleapis.com/*",
    "https://googlefontdirectory.googlecode.com/hg/ofl/*"
  ],
  "browser_action": {
    "default_icon": {
      "19": "icon.png",
      "38": "icon.png",
      "48": "icon.png"
    },
    "default_popup": "popup.html"
  }
}