Examine source code of GoodSearch

{
  "manifest_version": 2,
  "name": "GoodSearch",
  "version": "2.2",
  "description": "Advance query searches in many engines, by using '/' at the start of the url search bar.\nExample URL: / How to cook .pdf -> Turns into -> +How to \"cook\" filetype:pdf",
  "icons": {
    "8": "icons/megu_8.jpeg",
    "16": "icons/megu_16.jpeg",
    "32": "icons/megu_32.jpeg",
    "48": "icons/megu_48.jpeg",
    "96": "icons/megu_96.jpeg"
  },
  "permissions": [
    "search",
    "tabs"
  ],
  "omnibox": {
    "keyword": "/"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c600ec81-7eef-4d75-93cd-55e187f645b4}"
    }
  }
}