The Mozilla developers released Firefox 3.5.3, which fixes overall 4 security holes in the Web browser. 3 of them are considered to be critical and allow for executing code within the browser with highest privileges and to compromise the computer. Attackers could abuse these vulnerabilities to inject for example Trojans and other malware onto the victim’s computer – just with manipulated web pages.

With Firefox 3.5.3, the developers also added a nice new feature to the software: It’ll warn users if their Adobe Flash Player plug-in is outdated and must be updated. They’ll extend this feature for other plug-ins, according to the Mozilla Security Blog.

Please install the update as soon as possible. The easiest way is to go to the Help menu and click on “Check for Updates”. You can also download the whole installation package on the Firefox web site.

Dirk Knop
Technical Editor