manifest.json

{
   "background": {
      "scripts": [ "background.js" ]
   },
   "browser_action": {
      "default_icon": "images/gmail-extension-19.png",
      "default_title": "Send this link via Gmail"
   },
   "content_scripts": [ {
      "all_frames": true,
      "js": [ "mailto.js" ],
      "matches": [ "http://*/*", "https://*/*" ]
   } ],
   "description": "Makes Gmail your default email application and provides a button to compose a Gmail message to quickly share a link via email",
   "icons": {
      "128": "images/gmail-extension-128.png",
      "16": "images/gmail-extension-16.png",
      "32": "images/gmail-extension-32.png",
      "64": "images/gmail-extension-64.png"
   },
   "key": "TODO",
   "manifest_version": 2,
   "name": "Send via Gmail+",
   "options_page": "options.html",
   "permissions": [ "tabs", "http://*/*", "https://*/*", "http://*.google.com/" ],
   "update_url": "https://clients2.google.com/service/update2/crx",
   "version": "1.16"
}