Extension Boilerplate Generator
Generate complete Chrome and Firefox extension boilerplate code with modern Manifest V3 support. Create cross-browser extensions with popup interfaces, content scripts, background workers, and options pages instantly.
Extension Configuration
Access the currently active tab
Access browser tabs information
Store and retrieve data
Inject scripts into web pages
Add items to context menus
Display notifications
Schedule tasks
Access bookmarks
Access browsing history
Access and modify cookies
One URL pattern per line. Leave empty for no host permissions.
Cross-Browser Support
Generate modern extensions for Chrome and Firefox using the latest Manifest V3 specification with optimized cross-browser compatibility.
Complete Boilerplate
Includes popup, background script, content script, options page, and styling - everything you need to start.
Ready to Install
Download as ZIP or copy files individually. Load directly into Chrome/Firefox developer mode for testing.
About Browser Extensions
What are Browser Extensions?
Browser extensions are software programs that extend the functionality of web browsers. They can modify browser behavior, add new features, and interact with web pages to enhance the user experience.
Manifest V3
Manifest V3 is the latest platform for browser extensions, providing better security, privacy, and performance. It replaces background pages with service workers and introduces new APIs.
Extension Components
- • Manifest: Extension configuration and metadata
- • Service Worker: Background scripts for event handling
- • Content Scripts: Code injected into web pages
- • Popup: UI displayed when clicking the extension icon
- • Options Page: Settings and configuration interface
Cross-Browser Support
This tool generates code compatible with both Chrome and Firefox using Manifest V3 standards. The generated boilerplate works across Chromium-based browsers and Firefox with minimal modifications.
💡 Development Tips
- • Start with a minimal extension and gradually add features
- • Test thoroughly in developer mode before publishing
- • Follow the principle of least privilege for permissions
- • Use content security policies to enhance security
- • Consider user privacy and data handling best practices