The 20 Best Security and Protection Extensions
A data-driven list of the best browser extensions for Security & Protection. We analyzed user ratings, popularity, and update frequency to bring you the most reliable tools available.
Last updated: December 27, 2025
Browser security extensions act as your first line of defense against online threats. They work quietly in the background to protect your browsing experience.
These tools can block malicious websites that aim to steal your data. They also prevent intrusive advertisements from tracking your online behavior.
For instance, Hola VPN - Your Website Unblocker can help mask your IP address, enhancing your privacy. Meanwhile, AdBlock — block ads across the web and Adblock Plus - free ad blocker are designed to remove annoying and potentially harmful ads that can compromise your security.
Investing in these extensions means taking proactive steps to safeguard your personal information and ensure a safer online environment.
How This List Was Made
This "Best of Security Extensions" list was compiled using our established ranking system. We employ a weighted scoring model to ensure a balanced evaluation. This system prioritizes user ratings at 40%, with the total number of users accounting for 35%. The number of reviews left, indicating rating reliability, contributes 15%. Finally, the recency of the extension's update weighs in at 10%. This methodology identifies extensions that are not only popular and well-regarded but also actively maintained.
