Firefox patches zero-day security flaw days after Chrome fixes the same issue

• Kaspersky recently uncovered a zero-day vulnerability in Google Chrome
• Mozilla now says it has found a similar issue in Firefox
• The bug was used to target Russian targets in a cyber-espionage campaign

A worrying security flaw, similar to the Chrome zero-day issue recently spotted and patched by Google, has now been discovered, and remedied, in the Firefox browser.

In a security advisory published on March 27, 2025, Mozilla said after the discovery of the Chrome sandbox escape vulnerability, “various Firefox developers” found a similar pattern in the browser’s IPC code.