Examine source code of bit-pr-arrow

{
  "manifest_version": 2,
  "name": "bit-pr-arrow",
  "version": "1.0",
  "description": "Use keyboard to go to next file and previous file in bitbucket pull request.",
  "content_scripts": [
    {
      "matches": [
        "*://*.bitbucket.org/*/pull-requests/*"
      ],
      "js": [
        "nextfile.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{14de2e8d-3e32-4f70-a0d9-ae777b79dcbe}"
    }
  }
}