Examine source code of CopyMaj

{
  "manifest_version": 2,
  "name": "CopyMaj",
  "version": "1.9",
  "description": "Une simple extension pour copier les majuscules accentuées et autres caractères dans le presse-papiers.",
  "icons": {
    "48": "icon.png"
  },
  "applications": {
    "gecko": {
      "id": "{dcd3960f-7635-4a9a-b264-0f7f985da826}"
    }
  },
  "permissions": [
    "clipboardWrite"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "48": "icon.png"
    }
  }
}