Comprehensive site information and protection from phishing and malicious JavaScript when browsing the web

Netcraft Extension - Safe Browsing & Phishing Protection
The 'Netcraft Extension' is a Firefox add-on designed to secure your online browsing experience. It offers real-time defense against phishing, malicious JavaScript, and potential credential leaks. In-depth site reports empower informed decisions, while its community-driven approach helps in swiftly identifying and neutralizing new threats. With handy features like credential leak detection and rewards for reporting phishing, Netcraft Extension stands as a vigilant guard in the web's landscape.
Add-on stats
Manifest V3
By: Netcraft Ltd
Weekly download count: 146
Firefox on Android: No
Permissions:
- storage
- tabs
- webNavigation
- webRequest
- webRequestBlocking
Host permissions:
- <all_urls>
Size: 788.42K
Email: su*****@netcraft.com
URLs: Website ,Privacy policy
Full description: See detailed description
Ranking
Other platforms
User reviews
Pros
- Effective at identifying malicious sites
- User-friendly interface
- Fast updates to site ratings
- High accuracy in blocking harmful domains
- Provides detailed site information
Cons
- Some users reported it doesn't recognize new threats
- Information refresh can be distracting or annoying
- Inconsistent performance compared to other tools
Most mentioned
- Ability to evaluate the safety of websites
- High accuracy in detecting phishing sites
- Fast response time in updating site threats
User reviews
by Firefox user 13981225, 2025-03-08
Nice
by Firefox user 18858534, 2025-03-01
reconnaisse malicieuse 0 , ne reconnait aucune des nouvelles menaces, ne noter pas une extension si vous ne savez pas la tester !, 10 liens malicieux testés, netcraft n'en voie aucun le 30 décembre 2024 nordvpn en voit 8 (juste la parti domaine intéressante )style site malveillant : smartoffer-captcha-verification.b-cdn.net/last-step-to-go-solve.html .
by Firefox user 18756745, 2024-12-30
Add-on safety
Risk impact
Netcraft Extension requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.
Risk impact analysis details
- Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- Critical ****** ****** ** *** ********* ****** * *********** ******** **** ** ** *** ******* *** ****** **** **** *** ******* *****
- High ****** ********* ** * ****** ******** ******** ********** * ******* ******* *****
- High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
- Low ******* ****** ** *** ********* ********
Risk likelihood
We don't have sufficient data to confidently determine the risk likelihood of Netcraft Extension. Use it at your own risk.
Risk likelihood analysis details
- High This extension has low user count. Unpopular extensions may not be stable or safe.
- Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
- Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
- Good **** ********* *** **** **** *******
Upgrade to see full risk analysis details