Examine source code of Open With Online Tools

{
  "manifest_version": 2,
  "name": "Open With Online Tools",
  "author": "Jérémy Decker",
  "version": "1.0",
  "description": "Allow to open current page URL with few online tools (Videos converter/downloader, image editor, translator, ...). You can use somes pre-defined tools or manually add yours.",
  "applications": {
    "gecko": {
      "id": "OpenWithOnlineTools@hell_hibou"
    }
  },
  "icons": {
    "32": "content/icon32.png",
    "48": "content/icon48.png"
  },
  "browser_action": {
    "default_icon": "content/icon32.png",
    "default_title": "Open With Online Tools",
    "default_popup": "content/popup.html",
    "browser_style": true
  },
  "options_ui": {
    "page": "content/options.html",
    "open_in_tab": false
  },
  "permissions": [
    "activeTab",
    "storage"
  ]
}