If you use Firefox, Mozilla highly recommends that you change your passwords immediately, and update to the latest version of the web browser. The alert comes after it wound that a Russian news site was exploiting a vulnerability that compromised Firefox’s users’ local files. In short, that means the attacker was able to insert a malicious script that searched for key files on a user’s machine, and then upload that information to a remote server.  

The issue was resolved on Wednesday, August 5, with a security update yesterday. According to Mozilla, it appears that only users using Windows and Linux were targeted, but there’s a possibility that Mac users might be at risk as well. 

Daniel Veditz, Mozilla’s security head told users in a blog post about the browser’s weakness.

 The vulnerability comes from the interaction of the mechanism that enforces JavaScript context separation (the “same origin policy”) and Firefox’s PDF Viewer.


Users who use Firefox for Android, and other Mozilla products that don’t support the PDF Viewer weren’t affected. Veditz adds that people who use ad-blocking software may have been protected from the exploit. Still, it’s probably a good idea to change your passwords if you are using Firefox. 


Facts about: Firefox

 Mozilla Firefox is a free and open-source web browser that was created in 2002.

 It’s the world’s third most popular browser. According to Mozilla, there are half a billion Firefox users.

 Firefox is available in 89 languages.

 Firefox is also another name that's been attributed to red pandas

Cover: Wikipedia