Avast Online Security & Privacy

Secure your Mozilla Firefox browser against real-time online threats, trackers, and scams.

Browse with confidence using Avast Online Security & Privacy. We’ll check every site you visit, from Facebook to your bank, so nothing puts you or your data at risk. Join a growing community of 400 million Avast users.

• Identify and block phishing sites trying to steal your data. • Quickly check the risk rating of any website just by hovering over the link. • Block invasive tracking cookies that collect data on your browsing activities. • Block online advertising and remove your details from advertisers’ databases. • Optimize your privacy preferences and settings across your favorite online platforms. • Automatically ask sites to stop tracking you and selling your data. Learn more at https://globalprivacycontrol.org.

The data we collect includes: • URL - to check if the website is safe or not • Usage data - to measure the user’s behavior on the interface and understand how the user interacts with the extension • Internal extension identifier (GUID) - to distinguish unique malware hits, to measure product telemetry and calculate aggregated statistics