Examine source code of BDBFind

{
  "name": "BDBFind",
  "description": "BDBFind provides links to data and downloads when you view an article or patent for which BindingDB has data.",
  "version": "1.0.0.5",
  "manifest_version": 2,
  "icons": {
    "16": "/images/BDB16.png",
    "32": "/images/BDB32.png",
    "48": "/images/BDB48.png",
    "64": "/images/BDB64.png",
    "128": "/images/BDB128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "BindingDB DOIs"
  },
  "permissions": [
    "http://*/*",
    "https://*/*"
  ]
}