Horse is a playful browser extension that overlays a full-screen horse image on every webpage, gradually increasing its opacity over two minutes. The overlay is persistent and resists removal or style changes, making it a fun and stubborn addition to your browsing experience.
- Displays a full-screen horse image overlay on all websites
- Gradually increases opacity over 2 minutes
- Overlay cannot be easily removed or hidden
- Works on all URLs
- Clone or download this repository.
- Open your browser's extensions page:
- Chrome: Go to
chrome://extensions/ - Firefox: Go to
about:addons
- Chrome: Go to
- Enable "Developer mode" (Chrome) or "Debug Add-ons" (Firefox).
- Installation method:
- Chrome: Click "Load unpacked" and select the project folder.
- Firefox: Click "Load Temporary Add-on" and select the ZIP file you downloaded (do not extract it; use the ZIP file directly).
Once installed, the extension will automatically activate on every page you visit. The horse overlay will appear and gradually become fully opaque over two minutes.
manifest.json: Extension manifest (MV3)content.js: Main script that injects and protects the overlaystyle.css: Styles for the overlay and imagehorse.jpeg: The horse image (ensure this file is present)icons/: Extension icons
MIT License. See LICENSE for details.