Security researchers at Tipping Point have found what could be the first vulnerability in the new Firefox 3.0 web browser, ranking the severity of the bug as 'high'.

In a bid to respond to a critical security vulnerability, Mozilla has released a new version of its open source Firefox Web browser ahead of schedule.

Just days after the arrival of Firefox 3.6.7, Mozilla has released version 3.6.8 of its open source web browser to close a single critical vulnerability which was introduced in the previous update

In an interesting twist on browser-based security issues, security researchers said they have found a flaw in which Microsoft's Internet Explorer can cause Mozilla's Firefox to execute remote malicious code. Security firm Secunia released an advisory Tuesday, ranking the flaw as highly critical. The vulnerability is confirmed on Firefox 2.0.0.4 on a fully-patched version of Windows XP SP2.

Mozilla has released Firefox 3.5.1 to fix the recently reported security vulnerability in the Just-in-Time (JIT) JavaScript compiler, an exploit for the Windows version of which is already doing the rounds. Attackers can exploit the vulnerability to inject and execute code on vulnerable systems.

Mozilla's Firefox 3.5.1 browser is now out with fixes for one critical zero-day vulnerability that first became public earlier this week.

According to a message posted over the weekend on the Full-Disclosure mailing list, the latest version of Firefox, 2.0.0.5, contains a password management vulnerability that can allow malicious Web sites to steal user passwords. If you have JavaScript enabled and allow Firefox to remember your passwords, you are at risk from this flaw.

All those millions of people that rushed to download Firefox 3 got something they didn't expect - a critical security vulnerability. Some people smell a rat!

Sometimes it takes more than one or even two kicks at the can to fix a security issue even when the source code is open. Such is apparently the case with vulnerability in the Mozilla Firefox uniform resource identifier (URI) handler, which enables Firefox to call on other Web resources...