Top security web browser plugins

Plugins that you should have installed to browse internet safely. Of course you don't need to install them all. One java script blocker and one ad blocker and one privacy/tracker blocker is enough. On the list you can find best plugins for Chrome/Firefox/Opera. It is also good to have VirusTotal plugin installed to scan files before download.


  • HTTPS Everywhere icon

    HTTPS Everywhere

    Free Open Source Windows Linux Android Android Tablet BSD ... Vivaldi Browser Chrome Yandex.Browser Opera Chromium Firefox Website

    HTTPS Everywhere is a browser extension produced as a collaboration between The Tor Project and the Electronic Frontier Foundation. It encrypts your communications with a number of major websites.

    Many sites on the web offer some limited support for encryption over HTTPS, but make it difficult to use. For instance, they may default to unencrypted HTTP, or fill encrypted pages with links that go back to the unencrypted site.

    The HTTPS Everywhere extension fixes these problems by rewriting all requests to these sites to HTTPS.

    HTTPS Everywhere can protect you only when you're using sites that support HTTPS and for which HTTPS Everywhere includes rules.

  • uBlock Origin icon

    uBlock Origin

    Free Open Source Mac Windows Linux Microsoft Edge Vivaldi Browser ... Chrome Safari Opera Chromium Firefox Website

    Popular and efficient blocker for Chromium, Chrome, Edge, Firefox, Opera, Safari, Thunderbird. Fast and lean.

  • Ghostery icon

    Ghostery

    Free Mac Windows Linux Android iPhone ... Android Tablet iPad Vivaldi Browser Chrome Safari Yandex.Browser Opera Firefox Website

    Ghostery sees the invisible web - tags, web bugs, pixels and beacons. Ghostery tracks the trackers and gives you a roll-call of the ad networks, behavioral data providers, web publishers, and other companies interested in your activity.
    After showing you who's tracking you, Ghostery also gives you a chance to learn more about each company it identifies. How they describe themselves, a link to their privacy policies, and a sampling of pages where we've found them are just a click away.
    Ghostery allows you to block scripts from companies that you don't trust, delete local shared objects, and even block images and
    iframes. Ghostery puts your web privacy back in your hands. Ghostery has different builds for the different browsers.

  • Privacy Badger icon

    Privacy Badger

    Free Open Source Mac Windows Linux Chrome Firefox Website

    Privacy Badger is a browser-add on tool that analyzes sites to detect and disallow content that tracks you in an objectionable, non-consensual manner. When you visit websites, your copy of Privacy Badger keeps note of the "third party" domains that embed images, scripts and advertising in the pages you visit. If a third party server appears to be tracking you without permission, by using uniquely identifying cookies to collect a record of the pages you visit across multiple sites, Privacy Badger will automatically disallow content from that third party tracker. In some cases a third-party domain provides some important aspect of a page's functionality, such as embedded maps, images, or fonts. In those cases Privacy Badger will allow connections to the third party but will screen out its tracking cookies.

  • NoScript icon

    NoScript

    Free Open Source Mac Windows Linux BSD SeaMonkey ... Firefox Website

    Allow active content to run only from sites you trust, and protect yourself against XSS and Clickjacking attacks.

  • ScriptSafe icon

    ScriptSafe

    Free Open Source Mac Windows Linux Chrome Website

    A simple extension that brings some of Small NoScript iconNoScript 's functionality to Chrome while emphasizing simplicity and intuitiveness (no affiliation to NoScript or NotScripts). Formerly known as ScriptNo

  • uMatrix icon

    uMatrix

    Free Open Source Mac Windows Linux Chrome Opera ... Chromium Firefox Website

    Point & click to forbid/allow any class of requests made by your browser. Use it to block scripts, iframes, ads, facebook, etc.
    uMatrix: A point-and-click matrix-based firewall, with many privacy-enhancing tools.

    uMatrix put you in full control of where your browser is allowed to connect, what type of data it is allowed to download, and what it is allowed to execute. Nobody else decides for you: You choose. You are in full control of your privacy.

    Out of the box, uMatrix works in relax block-all/allow-exceptionally mode, meaning web sites which require 3rd-party scripts are likely to be "broken". With two clicks, uMatrix can be set to work in allow-all/block-exceptionally mode, which generally will not break web sites.

    Regarding the myth that "Chromium-based browsers can't reliably block JavaScript", see: https://github.com/gorhill/httpswitchboard/wiki/Blocking-javascript-execution-reliably-in-Chromium-based-browsers .

    • See ALL the remote connections, failed or attempted, depending on whether they were blocked or allowed (you decide).

    • A single-click to whitelist/blacklist one or multiple classes of requests according to the destination and type of data (a blocked request will NEVER leave your browser).

    • Efficient blacklisting: cookies won't leave your browser, JavaScript won't execute, plugins won't play, tracking pixels won't download, etc.

    • You do not have to solely rely on just one particular curated blacklist (arguably with many missing entries) outside which nothing else can be blocked: You are in full control.

    • Ease of use: uMatrix lets you easily whitelist/blacklist net requests which originate from within a web page according to a point-and-click matrix:

    • domain names (left column)
    • from very specific
    • to very generic
    • type of requests (top row)
    • cookies
    • CSS-related resources (stylesheets and web fonts)
    • images
    • plugins
    • scripts
    • XHR (requests made by scripts)
    • frames
    • others

  • VTchromizer icon

    VTchromizer

    Free Mac Windows Linux Android iPhone ... Chrome OS Android Tablet BSD iPad Chrome Website

    Right-click on any link and scan the target with VirusTotal, free and easy.

    Virustotal is a service that analyzes suspicious files and URLs and facilitates the quick detection of viruses, worms, trojans, and all kinds of malware detected by antivirus engines. It is not a substitute for antivirus or security products, but provides a valuable second opinion on a given file or web site. It is completely free and integrates over 40 antivirus solutions and more than 20 URL scanning tools.

    Have you received a suspicious link in your email inbox? Do you think the site you are currently viewing is a phishing attempt or some other fraud? Ask VirusTotal with just two mouse clicks and avoid infections and other unwanted outcomes.

  • VTzilla icon

    VTzilla

    Free Mac Windows Linux Website

    VTzilla is a Mozilla Firefox browser plugin that simplifies the process of scanning Internet resources with VirusTotal.

    • Discontinued The extension is no longer updated. Last version, 1.5.1, released in January 2012, can be still downloaded from Mozilla Addons
  • User-Agent Switcher icon

    User-Agent Switcher

    Free Mac Windows Linux Android iPhone ... Chrome OS Android Tablet BSD iPad Chrome Website

    User-Agent Switcher is a quick and easy way to switch between user-agents.

    Just right click on any page and select your user-agent.
    This Chrome extension adds a toolbar button and a menu to switch between user-agents.
    Browse with our predefined user-agents or add your own user-agents.
    Changing User-Agent allows you to mimic, spoof or fake other browsers, devices or search engine spiders.
    The extension does not render web pages in the same way as the selected one. User-Agent Switcher is primarily for developers who want to test how a page responds to different browsers. User-Agent switcher may also be used to reach certain pages that allows a particular browser.
    You can change User-Agent back to default when you are done.
    This extension also changes the javascript based "navigator userAgent"
    Includes presets for iOS (iPhone, iPad), Android, Windows Mobile Phone (Nokia Lumia) and browsers like Chrome, Internet Explorer, Microsoft Edge, Firefox, Safari and Opera etc.
    Add your own User-Agents if you donĀ“t find anything that suits your needs.

  • Random User-Agent icon

    Random User-Agent

    Free Open Source Mac Windows Linux Android iPhone ... Chrome OS Android Tablet BSD iPad Chrome Website

    Automatically change the user agent after specified period of time to a randomly selected one, thus hiding your real user agent.

  • Decentraleyes icon

    Decentraleyes

    Free Open Source Mac Windows Linux Android Android Tablet ... Chrome Opera Chromium Firefox Website

    Protects you against tracking through "free", centralized, content delivery. It prevents a lot of requests from reaching networks like Google Hosted Libraries, and serves local files to keep sites from breaking. Complements regular content blockers.