EXPLAINED: Firefox security warning multiple browser addons found to be riddled with malware so be on your guard | Rare Historical Photos

• Koi Security uncovered 17 malicious Firefox extensions that hid backdoors and tracking code, downloaded over 50,000 times
• The extensions pulled payloads from remote servers, hijacked affiliate links, injected trackers, stripped security headers, and enabled ad‑fraud mechanisms
• Mozilla removed all affected add‑ons and updated detection systems; users should uninstall them and secure accounts

More than a dozen Firefox extensions were found to be malicious, planting backdoors and keeping track of user browsing habits, experts have warned.