The second vulnerability could get abused to inject malicious code – for example a Trojan – into the victim’s computer by putting certain regular expressions into a certificate for SSL communication. This happened due to code that was meant to provide backwards compatibility to the non-standard regular expression syntax used by Netscape clients and servers. Now Firefox uses the current industry-standard wild-card syntax.

Update your Firefox as soon as possible by clicking on the Help menu and choosing “Search for Updates”. As other Mozilla products like Thunderbird and SeaMonkey are vulnerable too, apply updates ASAP as well when they get available.

Release date: September 01, 2009

Opera 10 is a recommended upgrade offering new and improved features, plus security and stability enhancements. A separate changelog listing changes since Opera 10 beta 3 is available.

New Features:

- Auto Update
- Crashlogging tool
- Inline spell checker
- Opera Presto 2.2 rendering engine
- Opera Turbo
- Preatty printing of unstyled XML
- Skin Elements
- Visual Tabs

Impruved Features:

- Acid 3 test
- Opera Dragonfly
- Speed dial configuration option
- Regular expression engine
-Web specification support
- HTML 5
- SVG
-Web fonts

New Opera 10 is avaliable from here : http://www.opera.com/browser/