Scan your downloads with VirusTotal before storing them, free and easy. More information at: https://docs.virustotal.com/docs/browser-extensions#vt4browsers. Contribute your domain name resolutions to the security community.

  • VT4Browsers
  • VT4Browsers
  • VT4Browsers
  • VT4Browsers
  • VT4Browsers
What is VT4Browsers?
VT4Browsers is a Firefox extension that enables users to scan their downloads using VirusTotal's free service before storing them on their system. By checking files or links with VirusTotal, users can avoid infections and other undesired outcomes from suspicious items. The extension also allows users to share their DNS resolutions with the security industry for collective safety, with the assurance of never being tied to their identity. Note: VT4Browsers is not an alternative to antivirus or security products, but a valuable addition for a second opinion.
Users: 5,480 ▼ -4
Version: 4.0.9 (Last updated: 2023-11-10)
Creation date: 2011-11-25
Weekly download count: 88
Firefox on Android: No
Risk impact: High risk impact
Risk likelihood: Moderate risk likelihood
Manifest version: 2
  • webRequest
  • webRequestBlocking
  • contextMenus
  • downloads
  • storage
  • <all_urls>
Size: 250.81K
Stats date:

Other platforms

VT4Browsers (v4.0.10)
4.36 (308) 100,000
Not available on Edge
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Avoid infections and other unwanted outcomes when you receive a suspicious file or link by checking the file or link with VirusTotal’s free and easy service. VirusTotal's mission is to help make the internet a safer place while helping to improve the security and antivirus industries and the online safety of other members of the VirusTotal Community. Learn more at https://docs.virustotal.com/docs/how-it-works.

By default the extension also allows you to collaborate with the security industry by sharing the DNS resolutions (ip address to domain name mappings) performed by your browser. These will never be tied to your identity and the sharing can be deactivated in the extension settings.

Privacy policy at https://docs.virustotal.com/docs/privacy-policy

Virustotal is a free online service that analyzes files and URLs enabling the identification of viruses, worms, trojans and other kinds of malicious content detected by antivirus engines and website scanners. VirusTotal is not a substitute for antivirus or security products, but integrates over 60 antivirus solutions and more than 60 URL scanning tools to provide a valuable second opinion on a given file or web site and as a way to detect false positives.

User reviews
User reviews summary
These summaries are automatically generated weekly using AI based on recent user reviews. Firefox Browser Add-ons does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
  • saves time and clicks
  • adds an additional layer of safety
  • effective and efficient
  • breaks some websites when installed
  • consumes API requests quickly
  • breaks CSRF token on certain sites
Most mentioned
  • breaks some websites when installed
  • consumes API requests quickly
Recent reviews
Good, saves time and clicks, adds an additional layer of safety
by KevK, 2024-05-24

by ElNietoLaTana, 2024-04-21

by ElNietoLaTana, 2024-04-21
View all user reviews
Risk impact

VT4Browsers is risky to use as it requires a number of sensitive permissions that can potentially harm your browser and steal your data. Exercise caution when installing this add-on. Review carefully before installing. We recommend that you only install VT4Browsers if you trust the publisher.

Risk likelihood

VT4Browsers is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

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