GOOGLE Chrome users are being warned about downloads that could have left them vulnerable to spying hackers.
The Google extensions were downloaded 32 million times and at least 70 have now been deleted from the Web Store.
Extensions are just extra features that people can add to their browser, such as those for ad-blocking or added security.
Researchers at Awake Security told Reuters about the major flaw with some of the Chrome add-ons.
Google spokesman Scott Westover told the news outlet: “When we are alerted of extensions in the Web Store that violate our policies, we take action and use those incidents as training material to improve our automated and manual analyses.”
Most of the malicious ad-ons claimed to warn users about potentially dangerous websites or convert file formats.