Is Avast Online Security & Privacy safe?

Clean risk

Checks visited websites for phishing, tracking, ads, and privacy signals while you browse.

This extension checks site URLs to rate website risk, identify phishing pages, and show link risk information. It can block tracking cookies and online advertising, apply privacy preferences on supported platforms, and send Global Privacy Control requests to sites. The description says Avast collects URLs, usage data, an internal extension identifier, device information, and country for safety checks and aggregated telemetry.

AVAST SoftwareFirefox Add-ons
0Risk
Who publishes it

AVAST Software - no other listings under this identity, 1 shared hostname

What this publisher told the store about itself, and the other listings that told it the same thing.

Publisher
AVAST Software

Shared hosts - 1 hostname

Hostnames hardcoded in this extension that few other listings call. That can mean one operator behind both, and it can equally mean a small shared vendor, so it is context rather than a conclusion. Hosts that many listings call are left out: they are services, not connections.

support.avast.com
Also called by 8 other listings

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

Where it sends data

Destinations our analysis observed Avast Online Security & Privacy contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.

  • Avast

    Avast Online Security & Privacy sends data to Avast. Named as a recipient by 1 other extensions we have analysed.

Updated 15 October 2026amo-473816