JustBlock Security – Ad Blocker, Malware & Phishing Protection

Tracking since Apr 19, 2026.

Changelog

• May 2, 2026
  description

  🛡️ JustBlock – Popup Blocker, Phishing Protection & Privacy Guard
  
  JustBlock is a real-time security extension that blocks popups, stops phishing attacks, removes tracking links, and protects your privacy, all with live on-screen activity so you always see it working.
  
  ⚡ Core Features
  
  ✔ Popup blocker - stops auto-popups, popunders, and malicious redirects
  ✔ Phishing protection - detects and blocks scam and phishing websites instantly
  ✔ Tracking link cleaner - removes hidden tracking parameters from every URL
  ✔ Real-time page scanner - monitors every page you visit for suspicious patterns
  ✔ Live activity feed - see exactly what JustBlock is blocking, in real-time
  
  🧠 Smart Popup Blocker — NEW
  
  Unlike a basic ad blocker or popup blocker, JustBlock intelligently allows:
  
      Login popups
  
      Payment windows
  
      Trusted site interactions
  
  While blocking everything harmful. No broken sites. No missed payments.
  
  🔒 Privacy Protection - 100% Local
  
  JustBlock is a zero-tracking, no-data-collection privacy extension.
  ✅ All processing happens locally on your device
  ✅ No data sent to any server
  ✅ Fully compatible with Chrome's Manifest V3 standard
  ✅ Lightweight — minimal CPU and memory usage
  
  👁️ See Your Protection Working
  
  Most security extensions and ad blockers work silently. JustBlock shows you:
  
      Pages scanned in real-time
  
      Popups blocked as they happen
  
      Phishing alerts the moment a threat is detected
  
      A live protection dashboard you can trust
  
  🚀 Perfect For
  
      Users who want a reliable popup blocker for everyday browsing
  
      Anyone protecting themselves from phishing scams and fake websites
  
      People who need a privacy extension without complexity
  
      Safe browsing on public Wi-Fi, banking sites, and shopping pages
  
  💬 One Click. Instant Protection.
  
  No setup. No configuration needed. Install JustBlock and your popup blocker and phishing protection are active immediately.
  
  👉 Install JustBlock - the popup blocker that shows you it's working.

  🛡️ JustBlock – Ad Blocker, Popup Blocker, Tracker Blocker & Phishing Protection
  
  JustBlock is a fast and lightweight ad blocker, popup blocker and privacy protection extension for Chrome. It helps block ads, stop popups, reduce trackers, clean tracking links, protect against phishing, and keep your browsing safer with live protection activity you can see.
  
  ⚡ Core Features
  
  ✔ Ad blocker - helps block intrusive ads, banners, popups and unwanted interruptions
  ✔ Popup blocker - stops auto-popups, popunders, suspicious redirects and scam pages
  ✔ Tracker blocker - reduces tracking scripts and removes hidden tracking parameters from URLs
  ✔ Phishing protection - helps detect scam, phishing and unsafe websites
  ✔ Malware protection - helps protect against malicious links, risky pages and unsafe redirects
  ✔ Real-time page scanner - checks pages for suspicious patterns while you browse
  ✔ Live activity feed - shows what JustBlock is protecting in real time
  
  🚫 Block Ads, Popups & Trackers
  
  JustBlock helps make browsing cleaner, faster and safer by blocking annoying ads, unwanted popups, popunders, trackers and suspicious redirects.
  
  Use JustBlock to:
  
  • Block ads and browsing interruptions
  • Stop popups and popunders
  • Reduce trackers and tracking links
  • Clean URLs by removing tracking parameters
  • Avoid suspicious redirects and unsafe pages
  • Browse with fewer distractions
  
  🛡️ Phishing & Unsafe Site Protection
  
  JustBlock adds an extra layer of protection against phishing, scam websites, fake pages and suspicious links. It helps warn you before unsafe sites can trick you into sharing passwords, payment details or personal information.
  
  This makes JustBlock useful for:
  
  • Online banking
  • Shopping websites
  • Email links
  • Social media links
  • Public Wi-Fi browsing
  • Everyday Chrome browsing
  
  🧠 Smart Popup Blocker
  
  Unlike a basic popup blocker, JustBlock is designed to block harmful popups while allowing trusted interactions that you actually need.
  
  JustBlock can allow important windows such as:
  
  • Login popups
  • Payment windows
  • Trusted site actions
  
  While helping block:
  
  • Scam popups
  • Popunders
  • Malicious redirects
  • Suspicious new tabs
  • Unwanted interruptions
  
  No broken sites. No missed payments. Just safer browsing.
  
  🔒 Privacy Protection - No Data Collection
  
  JustBlock is built as a privacy-first Chrome extension.
  
  ✅ No browsing data collection
  ✅ No data sold or shared
  ✅ No account required
  ✅ Protection runs locally on your device
  ✅ Compatible with Chrome Manifest V3
  ✅ Lightweight with minimal CPU and memory usage
  
  👁️ Live Protection Activity
  
  Most ad blockers and security extensions work silently. JustBlock gives you a clear live protection dashboard so you can see what is happening.
  
  You can view:
  
  • Pages scanned in real time
  • Popups blocked as they happen
  • Phishing and unsafe site alerts
  • Tracking links cleaned from URLs
  • Active protection status
  • Live security activity you can trust
  
  🆕 What’s New
  
  JustBlock has been refreshed with a cleaner design, smarter popup protection and a live protection dashboard.
  
  ✔ New modern interface with clearer protection status
  ✔ Smart popup blocker for trusted login and payment windows
  ✔ Live activity feed so you can see protection working
  ✔ Improved phishing and unsafe site protection
  ✔ Better tracking link cleaning
  ✔ Updated MV3 rule-based protection
  ✔ Faster and lighter browsing experience
  
  🚀 Perfect For
  
  JustBlock is useful for anyone who wants:
  
  • A simple ad blocker for Chrome
  • A reliable popup blocker
  • Tracker blocking and tracking link cleaning
  • Phishing protection against scam websites
  • Malware and unsafe site protection
  • A privacy extension with no data collection
  • Safer browsing for banking, shopping, email and social media
  • A lightweight Manifest V3 security extension
  
  💬 One Click. Instant Protection.
  
  No setup. No complicated settings. Install JustBlock and your ad blocker, popup blocker, tracker blocker and phishing protection are active immediately.
  
  👉 Install JustBlock — block ads, stop popups, reduce trackers, avoid phishing and browse with confidence.

• May 2, 2026
  short_description

  Block popups, phishing & unsafe sites in real-time. Smart protection with live activity you can see.

  Block ads, trackers, malware, phishing & scams with MV3 rules. No data collection. Lightweight, fast, easy to use.

• May 2, 2026
  name

  JustBlock Security

  JustBlock Security – Ad Blocker, Malware & Phishing Protection

• May 2, 2026
  permissions

  storage, declarativeNetRequest

  storage, declarativeNetRequest, activeTab

• Apr 29, 2026
  description

  All-in-one PRIVACY and SECURITY layer for CHROME™ — helps protect against malicious extensions, fraudulent downloads, browser vulnerabilities, and online PRIVACY threats.
  
  Safeguard your browser every time you access your EMAIL, BANK ACCOUNT, COMPANY DATA, or any other critical website.
  
  ----------------------------------------------------------------------------------
  18-IN-1 SECURITY & PRIVACY PACK FOR CHROME™
  ----------------------------------------------------------------------------------
  BLOCK ADS & TRACKERS — Blocks intrusive ads and advertising trackers across most websites.
  
  BLOCK EMAIL TRACKERS — Stops invisible tracking pixels hidden inside emails.
  
  BLOCK CRYPTO MINERS — Detects and blocks unauthorized in-browser cryptocurrency mining scripts.
  
  GUARD AGAINST MALICIOUS DOWNLOADS — Warns about risky or suspicious file types that could contain harmful code.
  
  FACEBOOK TRACKING CONTROL — Blocks Facebook™ tracking pixels and plugin telemetry while keeping chat and Like buttons functional.
  
  PARENTAL CONTROL (OPTIONAL) — Blocks adult or inappropriate content (off by default).
  
  PHISHING & SCAM DEFENSE — Helps reduce exposure to known phishing and scam pages.
  
  CLICKBAIT & SEARCH HIJACK PROTECTION — Blocks deceptive redirects and fake search results.
  
  BLOCK SUSPICIOUS SCRIPTS — Helps prevent hidden or cross-site scripts from running on untrusted pages.
  
  COOKIE & TRACKING PREVENTION — Limits advertising networks and third-party cookies from profiling you.
  
  LOCAL WHITELIST MODE — Instantly allow trusted websites with a single click.
  
  LIGHTWEIGHT DESIGN — Uses Chrome’s built-in Manifest V3 Declarative Net Request engine for speed and reliability.
  
  PRIVATE BY DEFAULT — No tracking, no analytics, and no remote servers.
  
  ONE-TOGGLE CONTROL — Instantly enable or disable all protection features.
  
  SECURE CLOUD ACCESS MODE — Keeps browser protections active when using cloud or SaaS platforms.
  
  RULE-BASED URL FILTERING — Blocks known malicious or unsafe domains at the network level.
  
  FAST & OPTIMIZED — Minimal CPU and memory usage; lightweight and efficient.
  
  BUILT-IN LOCAL RULES — All protection rules are stored inside the extension and processed locally by Chrome.
  
  ----------------------------------------------------------------------------------
  PRIVACY & TRANSPARENCY
  ----------------------------------------------------------------------------------
  100 % local protection — no browsing data ever leaves your device.
  
  No remote code, no telemetry, and minimal permissions (storage, declarativeNetRequest).
  
  Built entirely on Manifest V3, Chrome’s most secure extension framework.
  
  ----------------------------------------------------------------------------------
  TECHNOLOGY
  ----------------------------------------------------------------------------------
  
  Manifest V3 Compliant
  No Remote Code
  Minimal Permissions
  Runs Locally Inside Chrome
  
  ==============================================
  
  JustBlock.org provides a modern privacy and security layer for Chrome™ — helping you stay safe from online threats, protect your privacy, and keep browsing fast and smooth.
  
  As more of your work and personal data move to the cloud, Chrome™ remains your gateway to everything online. JustBlock adds the extra layer of protection your browser deserves.
  
  JustBlock Security is developed and maintained by JustBlock.org.
  
  
  ==============================================
  
  JustBlock Security - Version 3.0.2 (Changelog)
  
  Stability & Compatibility Improvements
  -------------------------------------------------------------
  
  Fixed an issue where some legitimate websites (including Microsoft services, SharePoint, and pages using jQuery.getScript) were loading blank content.
  
  Updated security rules to be more lenient, preventing false positives while keeping strong protection.
  
  Improved handling of dynamic script loads and background requests.
  
  Better Blocking Accuracy
  ----------------------------------------
  
  Updated domain lists and rule activation logic to ensure categories work as intended. Improved behavior of several protection packs (Downloads, Crypto, Facebook, Mail, Scams, Search Hijack).
  
  Smarter EXE Handling
  ------------------------------------
  
  EXE downloads from trusted vendors (Microsoft, Nvidia, Steam, etc.) now install normally.
  
  Suspicious EXE downloads trigger a JB warning page, giving users clarity instead of unexpected blocks.
  
  UI & Toggle Fixes
  -----------------------------
  
  Fixed an issue where protection toggles were not persisting correctly after closing the popup.
  
  Toggles now properly enable and disable rule packs in real time.
  
  New “Blocked by JB” Safety Page
  -----------------------------------------------------
  
  Clean, branded warning page replaces Chrome’s generic error.
  
  Easier to understand why a site or download was blocked.
  
  Better trust and transparency for users.
  
  ==============================================
  
  JustBlock Security – Version 3.0.3 (Changelog)
  
  New Junk Cleaner Tool
  --------------------------------------
  
  Introduced a one-tap Junk Cleaner that removes tracking parameters (UTM tags, fbclid, gclid, msclkid, igshid, etc.) from the current page link.
  
  Helps users get cleaner, more private URLs with no tracking clutter.
  
  Works on-demand and only affects the active tab, ensuring safe, predictable behavior.
  
  Popup UI Enhancements
  ----------------------------------------
  
  Added a compact, polished Clean button for a more modern look.
  
  Improved spacing and layout for a cleaner visual hierarchy.
  
  Updated status messages for clearer feedback (e.g., “All clean! Nothing to remove.”).
  
  Success Animation & Feedback Improvements
  ---------------------------------------------------------------------------------
  
  The Junk Cleaner now provides a smooth success animation when a link is cleaned.
  
  The button updates to “Cleaned”, and the popup gently fades out for a premium feel.
  
  Removed the previous icon-based UI for a more minimal, focused design.
  
  General Polish & Bug Fixes
  ----------------------------------------------
  
  Improved stability of popup rendering and asynchronous behavior.
  
  Minor layout adjustments for a smoother overall UI experience.
  
  ================================================
  
  JustBlock Security — Version 3.0.4 (Changelog)
  
  Summary
  Improved Facebook tracking protection and user control.
  
  Changes
  Added a dedicated Facebook tracking pixel blocking option.
  Improved Facebook tracking detection accuracy.
  Reduced false positives while maintaining compatibility.

  🛡️ JustBlock – Popup Blocker, Phishing Protection & Privacy Guard
  
  JustBlock is a real-time security extension that blocks popups, stops phishing attacks, removes tracking links, and protects your privacy, all with live on-screen activity so you always see it working.
  
  ⚡ Core Features
  
  ✔ Popup blocker - stops auto-popups, popunders, and malicious redirects
  ✔ Phishing protection - detects and blocks scam and phishing websites instantly
  ✔ Tracking link cleaner - removes hidden tracking parameters from every URL
  ✔ Real-time page scanner - monitors every page you visit for suspicious patterns
  ✔ Live activity feed - see exactly what JustBlock is blocking, in real-time
  
  🧠 Smart Popup Blocker — NEW
  
  Unlike a basic ad blocker or popup blocker, JustBlock intelligently allows:
  
      Login popups
  
      Payment windows
  
      Trusted site interactions
  
  While blocking everything harmful. No broken sites. No missed payments.
  
  🔒 Privacy Protection - 100% Local
  
  JustBlock is a zero-tracking, no-data-collection privacy extension.
  ✅ All processing happens locally on your device
  ✅ No data sent to any server
  ✅ Fully compatible with Chrome's Manifest V3 standard
  ✅ Lightweight — minimal CPU and memory usage
  
  👁️ See Your Protection Working
  
  Most security extensions and ad blockers work silently. JustBlock shows you:
  
      Pages scanned in real-time
  
      Popups blocked as they happen
  
      Phishing alerts the moment a threat is detected
  
      A live protection dashboard you can trust
  
  🚀 Perfect For
  
      Users who want a reliable popup blocker for everyday browsing
  
      Anyone protecting themselves from phishing scams and fake websites
  
      People who need a privacy extension without complexity
  
      Safe browsing on public Wi-Fi, banking sites, and shopping pages
  
  💬 One Click. Instant Protection.
  
  No setup. No configuration needed. Install JustBlock and your popup blocker and phishing protection are active immediately.
  
  👉 Install JustBlock - the popup blocker that shows you it's working.

• Apr 29, 2026
  short_description

  Block ads, trackers, malware & phishing with MV3 rules. No data collection. Lightweight, fast, easy to use.

  Block popups, phishing & unsafe sites in real-time. Smart protection with live activity you can see.

Permissions & access

Permissions

storagedeclarativeNetRequestactiveTab

Host access

None declared

Screenshots

Similar extensions

Alternatives to JustBlock Security – Ad Blocker, Malware & Phishing Protection, ranked by description similarity.

Advanced Ad Blocker

Block ads, trackers, and unwanted content with advanced filtering capabilities

1.0K

★ 5.0

Popup Blocker - Blocks annoying Popups

Blocks advertising popups from Streaming and Downloads sites

90.0K

★ 4.0

ClearBlock — Complete ad blocking for the whole internet

Cleaner, Faster Browsing — Free Ad Blocker

830

★ 3.0

Chrome Adblocker – The Best Free Ad Blocker for Chrome

Blocks all ads: banners, video ads, redirects. Secure and customizable site whitelisting.

807

★ 3.5

RedBlock - Ultimate Ad Blocker

Block ads, trackers, and malware across the web with style. Features customizable themes and advanced privacy protection.

14

★ 1.0

Privacy Focused Website Blocker (by Avrodh.com)

Website blocker with a focus on privacy. Block unlimited websites with schedules, password protection, and custom blocked pages

270

★ 4.8

Free Adblocker for Chrome by Open Adblocker

Free Adblocker for Chrome by Open Adblocker

100.0K

★ 4.8

SafeSearch - Web Filter for Safe Browsing & Search

A web filter extension for safe browsing and search in Chrome.

289

★ 4.7