Examine source code of Tab Vault

{
  "manifest_version": 2,
  "name": "__MSG_extensionName__",
  "version": "1.8.6",
  "default_locale": "en",
  "description": "__MSG_extensionDescription__",
  "applications": {
    "gecko": {
      "id": "{a596357b-5d1f-4e04-ba81-4013c6d7d34e}"
    }
  },
  "icons": {
    "48": "icons/paste-48.png"
  },
  "permissions": [
    "tabs",
    "clipboardWrite",
    "clipboardRead",
    "storage"
  ],
  "browser_action": {
    "default_icon": "icons/paste-32.png",
    "default_title": "__MSG_extensionName__",
    "default_popup": "popup/choose_paste.html",
    "theme_icons": [
      {
        "light": "icons/logo_dark.svg",
        "dark": "icons/logo_light.svg",
        "size": 32
      }
    ]
  }
}