Stops you before you visit known phishing and malware sites
nuDefend Browser Guard is a free browser extension. If you open a site already known for phishing (impersonating a trusted source) or spreading malware (harmful software), the extension warns and stops you. A clear warning appears instead of the site.
- Free, with no ads
- No account or signup needed
- Sites are checked in your browser
How it helps you
A warning before you enter
When you open a site known to be dangerous in a tab, a warning appears instead of the page. From there, you can go back to safety.
A list that keeps updating
The list includes more than 400,000 known phishing and malware sites and is updated several times a day.
You stay in control
Think a site was blocked by mistake? Let us know with a click, or continue to the site if you're sure it's safe.
Share less of your home network, when you choose
In the extension settings, you can limit IP address exposure through WebRTC, a browser communication feature, so sites cannot see your computer's local network addresses. This option is off by default, and you can turn it on with a click.
What the warning looks like
This warning appears instead of the dangerous site. From here, you can go back, report a site blocked by mistake, or continue anyway.
Privacy, in plain English
Sites are checked in your browser without sending us your browsing history. No ads, no tracking, and no selling your data.
Exactly what gets sent from your browserProtection beyond your browser
nuDefend Browser Guard protects this browser. nuVPN, our VPN service, also stops visits to known phishing and malware sites in other apps on your device while the service is connected.
Frequently asked questions
How much does it cost?
Nothing. nuDefend Browser Guard is free, with no ads and no account required.
Which browsers does it work with?
In Chrome and Edge.
What if a safe site is blocked?
The warning page has a "Blocked by mistake?" button. Your report helps us correct the list. If you're sure the site is safe, you can continue to it anyway.
Does the extension send you the sites I visit?
No. Sites are checked in your browser, and your browsing history is not sent to us. You'll find the full details in the extension's privacy policy.
Have a question about the extension? Write to us: support@nudefend.com