A major vulnerability discovered by Mozilla lurking in an advertisement shown by a Russian news site could steal your files and upload them to a Ukrainian server without you ever knowing. The flaw ...

Earlier this week, Mozilla was notified by security researcher Cody Crews that a malicious advertisement on a Russian news site was exploiting a vulnerability in Firefox's PDF Viewer to search for ...

Mozilla recently discovered an exploit in the wild that allows a malicious actor to remotely direct your computer to upload files to a server without permission. The exploit, which a user discovered ...