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A sleek, modern popup blocker with an Apple-inspired glassmorphism UI and advanced redirect protection.
Ultra Popup Blocker (UPB) is a lightweight, high-performance userscript designed to neutralize modern popup techniques, redirects, and overlay advertisements. Built with a state-of-the-art interception engine, it operates silently in the background, protecting your browsing experience without breaking legitimate websites.
A stunning, blur-backed interface that feels native to modern operating systems. It adapts intelligently to your device:
window.open, target="_blank", and simulated mouse
events (including middle-click).beforeunload events to prevent sites from redirecting your
current tab in retaliation for a blocked popup.You need a browser extension to run this script.
Click the install button above or visit the GitHub releases page.
UPB works out of the box. When a popup is blocked, you are in control:
| Action | Description |
|---|---|
| ✅ Allow Once | Opens the blocked popup just this one time. Useful for login windows. |
| 💙 Trust Site | Whitelists the domain. Popups will never be blocked here again. |
| ❌ Block Site | Adds the domain to the Deny List. Future attempts will be blocked silently. |
| ⚙️ Config | Opens the dashboard to manage your Allowed/Denied lists. |
Pro Tip: On mobile devices, the inputs are optimized to prevent auto-correct and auto-capitalization, making domain entry frustration-free.
This project is an evolution of the original concept, rebuilt for the modern web.
Distributed under the MIT License. Code is provided "as is" without warranty.