Examine source code of r/Redirect

{
  "manifest_version": 2,
  "name": "__MSG_extensionName__",
  "version": "1.1.5",
  "description": "__MSG_extensionDescription__",
  "author": "__MSG_extensionAuthor__",
  "default_locale": "en_US",
  "homepage_url": "__MSG_extensionHomePageUrl__",
  "icons": {
    "48": "icons/icon.svg",
    "96": "icons/icon.svg"
  },
  "permissions": [
    "webNavigation"
  ],
  "background": {
    "scripts": [
      "scripts/background.js"
    ]
  },
  "omnibox": {
    "keyword": "r/"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "rslash@elypia.org"
    }
  }
}