It is reported that when searching for Avast or AVG on the official website of Mozilla Add-ons, no results are returned. Even with these extensions, the store does not currently return Avast Online Security or SafePrice or AVG Online Security or SafePrice. Mozilla appears to have removed these extensions from its store. “Oops! We can’t find that page” error message when a user tries to open one of the store URLs with an Avast or AVG extension.
Wladimir Palant, creator of AdBlock Plus have analyzed these extensions as early as last year, and the analysis shows that AVAST directly collects back user browsing data. Obviously, as a protection extension, it is not necessary to pass back all the addresses browsed by the user, so the developer questioned that the extension collected far more data than needed. AVAST uses the collected data to accurately analyze which websites users visit, how often they visit, content on the website, and even accurately identify users. As for the specific purpose of collecting this data, it is certainly not just a security analysis. In the end, the developer found that AVAST intentionally collected the user’s private information.