Examine source code of Phrase Finder

{
  "manifest_version": 2,
  "name": "Phrase Finder",
  "version": "1.0",
  "description": "A fun and educational browser add-on to practice translating English action verbs to Vietnamese, perfect for language learners.",
  "icons": {
    "48": "phrasefinder_icon.png"
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_title": "Phrase Finder"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{2e725034-d5c6-4fd1-b5fa-8d4303dc9878}"
    }
  }
}