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

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.

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

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

Osprey: Browser Protection for Chrome, Firefox, and Edge provides you with a configurable shield against potentially harmful websites. It helps safeguard your online experience by identifying and blocking threats.

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

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

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.

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.

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.

Clear Cache for Firefox lets you clear the cache, efficiently removing both disk and RAM cache by utilizing a single button click or using convenient keyboard shortcuts.

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

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

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

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.

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

OPSWAT File Security (formerly 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.

Link Unshortener for Chrome provides you with the ability to preview the destination of a shortened link before visiting.

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

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.

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

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.

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.

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