360 Internet Protection is an add-on for Firefox that can detect harmful URLs instantly and help prevent web-based dangers.

Avast Online Security for Chrome, Firefox, Edge, and Opera helps protect you and your data while you surf the web.

Code Verify for Chrome, Firefox, and Edge is an extension/add-on developed to verify the code running in your browser matches what was released.

Cookie Popup Blocker is a Google Chrome extension that automatically removes annoying cookie popups that appear when you visit a page without agreeing to the terms.

Download Virus Checker for Chrome, Firefox, and Opera provides an additional security layer by scanning a requested download link with VirusTotal's engines.

Emsisoft Browser Security for Chrome, Firefox, and Edge is designed for blocking dangerous websites that distribute malware as well as helping to prevent phishing attacks.

HTTPS Everywhere is a Firefox extension that encrypts many of your communications with most major websites to make your browsing more secure.

Link Virus Check - Security Plus for Chrome and Firefox is a free extension that enables you to check URLs for viruses.

Little Rat is a handy tool that has been specifically created to keep a close eye on the network usage of other installed extensions.

Malware.AI Browser Security for Firefox is a visual AI-based malware detection add-on to help keep you safe while browsing.

Malwarebytes Browser Guard for Chrome and Firefox is a free extension designed to bring the protection of Malwarebytes direct to your browser.

Metadefender for Chrome and Android allows you to scan all downloads, or specific files, for malware using a number of commercial anti-malware engines in order to limit the potential of one slipping through.

minerBlock is a browser extension/add-on designed to block crypto miners.

moarTLS Analyzer is a Chrome security extension designed to look for non-secure links on web pages.

MyPermissions Cleaner for Chrome and Android is a powerful scanning extension designed to track and control how applications access your personal information online.

Netcraft Anti-Phishing for Chrome, Firefox, and Opera is a free extension that provides you with comprehensive site information and phishing protection while you browse the web.

NoScript is an Open Source add-on/extension that provides extra protection for Firefox, Chrome, Flock, Seamonkey, and other Mozilla or Chromium-based browsers.

OPSWAT File Security for Chrome provides advanced in-browser malware scanning for your downloads.

PhishGuard is a way for you to make sure you know what you're clicking on. This extension aims to prevent email phishing attacks by telling you where links really lead.

PixelBlock is an Gmail extension that blocks email tracking attempts used against you to detect the opening/reading of emails.

Security Tweaks for Chrome, Firefox, Edge, and Opera, is designed to improve browsing security via several easy-to-activate tweak options.

Security.txt displays the security.txt and humans.txt files for a website if available.

Smart HTTPS for Chrome, Firefox, Edge, and Opera is designed to switch from insecure HTTP website addresses to secure HTTPS seamlessly.

Terms of Service; Didn’t Read for Chrome, Firefox, Opera, and Safari will instantly retrieve information about the website's terms of service and privacy policies, with ratings and summaries from tosdr.org.

Trend Micro ID Protection (formerly Trend Micro Check) for Google Chrome, WhatsApp, and Messenger helps protect you from malicious websites, block ads, and keep your social media accounts safe.

Ugly HTTP for Chrome enables at-a-glance info on whether or not a page is HTTP or HTTPS.

Unshorten.It! for Chrome and Firefox allows you to right-click on shortened URLs to discover where they actually lead to and get their safety rating.

VT4Browsers is the official free browser extension for Chrome and Firefox to scan suspicious files or links using the Virustotal service.

Wappalyzer for Chrome, Firefox, and Edge is a browser extension that uncovers the technologies used on websites. It detects content management systems, eCommerce platforms, web servers, JavaScript frameworks, analytic tools, and much more.

WhatRuns for Chrome and Firefox gives you a peek into what runs a website, including Analytics Tools, Fonts, Frameworks, WordPress Plugins, and more.

WiFi Dashboard is a simple utility that provides an active status of your Wi-Fi network from color-coded windows.

Windows Defender Browser Protection is a Google Chrome extension that extends the capabilities of Windows Defender for added protection against phishing, malicious websites and more.

WOT for Chrome, Firefox, Edge, and Opera is a free extension that helps people make informed decisions about whether to trust a website or not.