manifest.json

{

  "manifest_version": 2,
  "name": "OverbiteNX",
  "version": "0.2",
  "description": "Enables the Gopher protocol in Firefox.",
  "author": "The Overbite Project",
  "homepage_url" : "https://gopher.floodgap.com/overbite/",

  "applications": {
      "gecko": {
          "id": "overbitenx@floodgap.com",
          "strict_min_version": "59.0"
      }
  },
  "permissions": [
      "bookmarks",
      "downloads",
      "history",
      "nativeMessaging",
      "tabs"
  ],
  "background": {
      "scripts": [
           "topaz.js",
           "agate.js"
      ]
  },
  "page_action": {
      "browser_style" : true,
      "default_icon"  : "r/stop.svg",
      "default_title" : "Stop Gopher transfer"
  },
  "protocol_handlers": [
    {
      "name"        : "OverbiteNX",
      "protocol"    : "gopher",
      "uriTemplate" : "d?%s"
    }
  ]

}