Examine source code of The OSR Webring

{
  "manifest_version": 2,
  "name": "The OSR Webring",
  "version": "1.0.3",
  "browser_specific_settings": {
    "gecko": {
      "id": "@totalityofygg.com",
      "strict_min_version": "62.0"
    }
  },
  "description": "OSR Webring",
  "icons": {
    "48": "icons/osr-48.png"
  },
  "sidebar_action": {
    "default_title": "The OSR Webring",
    "default_panel": "sidebar/osr.html",
    "open_at_install": true,
    "default_icon": {
      "48": "icons/osr-48.png"
    }
  },
  "permissions": [
    "storage",
    "tabs"
  ]
}