Examine source code of Quickreddit

{
  "name": "Quickreddit",
  "description": "Type \"r/ subreddit\" to quickly go to that subreddit.",
  "version": "1.2resigned1",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "applications": {
    "gecko": {
      "strict_min_version": "52.0a1",
      "id": "{986f0992-7121-47c1-8bd6-5db48e0904f5}"
    }
  },
  "omnibox": {
    "keyword": "r/"
  },
  "manifest_version": 2
}