🌌 New Tab Extension (Addons.Mozilla.org)

New Tab Extension is a minimalist browser extension that:

• Replaces Firefox's default new tab page
• Lets you choose from multiple animated or static backgrounds
• Saves your preferences locally using localStorage
• Works entirely offline - no external servers or dependencies

Screenshots

Main page

Bookmarks and widgets

Sidebar

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How to Load the Extension Temporarily (via about:debugging)

1. Open Firefox
2. Go to: about:debugging#/runtime/this-firefox
3. Click "Load Temporary Add-on"
4. Select the manifest.json file from your extension folder

⚠️ Temporary extensions are removed when Firefox restarts.

How to Set It as Your Homepage

To make the extension your homepage:

1. Open Firefox settings (about:preferences)
2. Scroll to Home > New Windows and Tabs
3. Under New tabs, select Custom URLs...
4. Enter: moz-extension://<your-extension-id>/index.html

You can find your extension ID in about:debugging after loading it.

🛠 Features

• 🎨 Multiple background modes: stars, particles, grids, images, and more
• 💾 Settings saved locally - no cloud, no sync required
• 📅 Customizable time and date formats
• 📝 Sidebar with:
  • Weather widget with location support
  • Notifications manager to notify about various options
  • Background customization options
  • etc.
• ⏰ Time customization (12/24 hour format, date format)
• ⚡ Fast and lightweight - no performance impact
• 🔒 Private — no data collection, no analytics

💡 Developer Notes

• Built with vanilla JavaScript, HTML, and CSS
• Uses localStorage for persistent settings
• Supports multiple background modes: stars, particles, grids, images, and more
• Includes a sidebar with sticky notes, weather widget, quotes widget, and time customization
• Designed to be lightweight and fast, with no external dependencies
• Designed to be easily modifiable