International Journal of Scientific Research and Engineering Development

Because web-based cyber threats are rapidly evolving, traditional browser security mechanisms often fail to provide real-time protection against malicious websites, phishing attacks, and unsafe downloads. This paper presents Safe Guardian, a browser-based security extension designed to proactively safeguard users by detecting and mitigating online threats during browsing activities. The system continuously monitors user interactions, including URL access and file downloads, and analyzes them using integrated threat intelligence services such as VirusTotal APIs.Upon identifying suspicious or malicious behavior, Safe Guardian immediately triggers a protection mechanism that blocks access to harmful resources and alerts the user through real-time warning notifications. The extension also provides a controlled browsing experience by maintaining a secure interaction layer that prevents further engagement with potentially dangerous content. This ensures that the user’s system remains uncompromised while maintaining seamless browsing performance.The proposed implementation leverages event-driven monitoring, lightweight browser extension architecture, and external API-based threat analysis without requiring deep system-level modifications. Experimental observations demonstrate that the system effectively identifies threats with minimal latency and enhances user awareness of cybersecurity risks. The results validate the feasibility of browser-level proactive defense mechanisms as a scalable and user-friendly solution for improving everyday web security

Shifa Bilal Tamboli, Simeen Phiroj Mulani, Arman Tajuddin Shiakh,"Safe Browser Extension for Real Time Safe Browsing" International Journal of Scientific Research and Engineering Development, V9(2): Page(2180-2186) Mar-Apr 2026. ISSN: 2581-7175. www.ijsred.com. Published by Scientific and Academic Research Publishing.