A month ago I wrote about Avast browser extensions being essentially spyware. While this article only names Avast Online Security and AVG Online Security extensions, the browser extensions Avast SafePrice and AVG SafePrice show the same behavior: they upload detailed browsing profiles of their users to
uib.ff.avast.com. The amount of data collected here exceeds by far what would be considered necessary or appropriate even for the security extensions, for the shopping helpers this functionality isn’t justifiable at all.
After I published my article I got the hint to look at Jumpshot, a company acquired by Avast in 2013. And indeed, that suddenly made perfect sense. On their website, Jumpshot praises its “clickstream data” product:
Incredibly detailed clickstream data from 100 million global online shoppers and 20 million global app users. Analyze it however you want: track what users searched for, how they interacted with a particular brand or product, and what they bought. Look into any category, country, or domain.
That sounds exactly like the data that Avast collects from their SafePrice and Online Security users. Yes, you are the product – even if you paid for that antivirus.
Spying on your users is clearly a violation of the terms that both Google and Mozilla make extension developers sign. So yesterday I reported these four extensions to Mozilla and Google. Mozilla immediately disabled the extension listings, so that these extensions can no longer be found on the Mozilla Add-ons site. Mozilla didn’t blacklist the extensions however, stating that they are still talking to Avast. So for existing users these extensions will still be active and continue spying on the users.
Update (2019-12-04): I also reported these extensions to Opera. 16 hours later I received a response from Opera:
Thanks for reporting it to us. We unpublished these extensions from our store.
And what about Google? Google Chrome is where the overwhelming majority of these users are. The only official way to report an extension here is the “report abuse” link. I used that one of course, but previous experience shows that it never has any effect. Extensions have only ever been removed from the Chrome Web Store after considerable news coverage. Or does anybody have a contact at Google who would be able to help?
Update (2019-12-18): Google unexpectedly removed three of the extensions from Chrome Web Store. Only AVG Online Security extensions remains listed.