Examine source code of Disable tabs

{
  "manifest_version": 2,
  "name": "Disable tabs",
  "version": "0.1",
  "description": "Opens all new tabs in a new window",
  "homepage_url": "https://git.sr.ht/vyryls/disabletabs",
  "icons": {
    "32": "icons/32.png"
  },
  "permissions": [
    "tabs"
  ],
  "browser_action": {
    "default_icon": "icons/32.png",
    "default_title": "Disable tabs"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "disabletabs@vyryls.com"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  }
}