Chrome Web Extension
Edge Web Extension
Android App
Block Malicious Websites and Stay Safe Online
Prevent accidental visits to harmful websites. Poper Blocker’s Malicious Site Protection feature automatically blocks access to known dangerous sites, keeping you safe from potential threats.
Free forever
No registration required
Works on popular browsers
“A great option for YouTube”
“Excellent addition to ad
blockers”
How Our Malicious Site Protection Works
When you attempt to visit a website that is flagged as malicious, Poper Blocker instantly blocks access and displays a warning message explaining the risk. Our database of harmful websites is continuously updated, ensuring you stay protected against the latest threats. Available for Chrome and Edge.
Key Benefits
Blocks Malicious Websites
Prevents access to known dangerous sites.
Real-Time Warnings
Alerts you when a site poses a security risk.
Works Automatically
No manual setup required, just enable and stay protected.
Constantly Updated
Our database of harmful websites is regularly refreshed.
Completely Free
Get essential security without paying a dime.
How to use the Malicious Site Protection Feature
Get started in minutes with our easy installation process.
Install Poper Blocker
Download Poper Blocker to your device.
Activate “Malicious sites protection”
Open Poper Blocker’s settings and toggle “Malicious sites protection” to enable protection.
We protect you online
Poper blocker now blocks malicious browsing, and you can have a safer browsing experience.
Trusted by 2,000,000+ users Worldwide
“actually really helpful in movie websites and while shopping it removes pop ups super quickly without you even noticing there are some delays tho but really good overall. Thank you for the creators of this extension!!“
Jessica L
Modified Jan 7, 2025
“I had used the free version Poper Blocker for a very long time, and I decided to buy the Pro Version. I have always liked this blocker because it does a great job. It allows me to decide which popups to allow and it erases my tracking online such as when I access my bank accounts.“
Sarah M
Modified Nov 17, 2025
“Works super good! Haven’t had any pop ups anymore since I installed this!“
James B
Modified Dec 20, 2025
Why Choose Poper Blocker?
Advanced Ad Blocking
Effectively removes pop-ups, banners, and sponsored posts across sites.
Seamless User Experience
Simple and intuitive controls make ad blocking effortless.
Proven Performance
Trusted by millions for fast and uninterrupted browsing.
Everything you need for a cleaner, safer browsing experience
Pop-Up Blocking
Automatically blocks all types of pop-ups and overlays on any website.
YouTube Ad Blocking
Hides YouTube ads so you can enjoy videos without interruptions.
Ad Blocking
Blocks ads on websites for a cleaner browsing experience.
Cookie Banner Blocking
Stops cookie consent banners from cluttering your screen.
Instagram Ad Blocking
Stops intrusive ads from appearing in your Instagram feed and stories.
Facebook Ad Blocking
Removes ads and sponsored content from Facebook for a cleaner feed.
X (Twitter) Ad Blocker
Blocks promoted tweets and ads on X (formerly Twitter).
LinkedIn Ad Blocking
Prevents sponsored posts and ads from appearing in your LinkedIn feed.
Notification Blocker
Automatically blocks both notifications and notification requests.
Tracker Blocker
Stop these hidden scripts from tracking your online activity.
YouTube Ad Blocker for Android
Watch videos with fewer ads, even when the app is minimized.
Pinterest Ad Blocking
Removes Pinterest ads, so you can focus on the content you love.
Frequently Asked Questions
Everything you need to know about our ad blocker.
How does Malicious Site Protection work?
It detects and blocks access to websites that are known to be harmful, displaying a warning message when a dangerous site is detected.
How often is the list of malicious sites updated?
We constantly update our database to include newly identified threats.
Will this block all dangerous sites?
While we block known malicious sites, new threats emerge frequently. Using additional security tools is recommended for full protection.
Best Ad Blocker Extension
Stay Safe Online, Block Malicious Sites!
Prevent access to harmful websites with Poper Blocker. Install now for automatic protection against online threats!
Free forever
No registration required
Works on popular browsers
