Extuno Browser Threat Protection Firefox

Extuno Browser Threat Protection

By: Extuno Add-on
Scan your installed extensions against Extuno threat intelligence, flag malicious and risky ones, and run live deep scans.

Features & Capabilities

Extuno checks the extensions already installed in your browser and tells you which ones are safe and which are worth a second look. Open the toolbar popup and you get a plain verdict for each add-on, with the risky ones pulled to the top.

What it does:

  • Checks every installed extension against Extuno's threat database and a catalog of known-malicious add-ons.
  • Marks each one clean, suspicious, or malicious, and says why.
  • Runs a deep scan of any add-on on demand. Extuno downloads the published package from the store by its id and analyzes it on the server (static checks, a sandboxed run, and a source review). No files from your device are uploaded.
  • Re-checks new and updated extensions on its own, so an add-on that turns malicious in a later update does not slip past you.

Protection while you browse (every layer is optional and can be paused):

  • Blocks known malicious domains and IP addresses, trackers, and crypto-mining hosts.
  • Warns you before a look-alike or phishing page loads.
  • Stops dangerous downloads, such as an executable disguised as a document.
  • Blocks in-page mining and card-skimming scripts.

Privacy:

  • It never reads the files of your other extensions, and never disables or removes them for you.
  • It works with an anonymous device id; connecting an Extuno account is optional.
  • Page content is checked on your device and is not sent anywhere.

Free to use. Full privacy policy: https://extuno.com/privacy

User Growth & Download Statistics

Manifest V3 Add-on
By:
Extuno
Daily users:
-
Rating:
5.00
(2)
Version:
1.17.0 Last updated: 2026-07-03
Version code:
6331948
Creation date:
2026-06-30
Risk:
High risk impact High risk likelihood
Permissions:
Host permissions:
  • <all_urls>
Content scripts matches:
  • *
Size:
215.38KB
Email:
in*****@extuno.com
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-07-27
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Developed by:
Extuno
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/extuno-browser-protection/
Email:
in*****@extuno.com
Website:
https://extuno.com/support

User Reviews

One of the best Firefox security extensions I've tried. Extuno adds an extra layer of browser threat protection by checking installed extensions for malicious or suspicious behavior, while also helping protect against phishing websites, dangerous downloads, trackers, and other web threats. What I like most is that the interface is simple and the security verdicts are easy to understand. The deep scan feature for browser extensions is especially useful when you want to investigate a suspicious add-on before trusting it. A great choice for anyone looking for malicious extension detection, phishing protection, and better browser security on Firefox. Lightweight, practical, and privacy-focused. Highly recommended!
by Se*****, 2026-07-13

seems very good.
by Ma*****, 2026-07-06
View all user reviews ›

Is Extuno Browser Threat Protection Safe?

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Extuno Browser Threat Protection requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details
  • Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
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Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Extuno Browser Threat Protection is recently added, and hasn't been around long enough for us to gather enough data to accurately assess its risk level.

Risk likelihood analysis details
  • High This extension was recently updated in the past month. New updates may not be stable or safe.
  • High **** ********* *** ******** ****** *** ********** *** *** ** ****** ** *****
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  • Good **** ********* *** **** **** *******
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