Mozilla has released an update to its popular Firefox browser that is said to bring added security and greater stability. The patches are for Firefox 3.0.4 and – bringing them up to version 3.0.5 and, respectively – and address at least three problems classified as critical. Two of these issues could allow an attacker execute a cross-site scripting attack, while the third critical flaw relates to stability bugs in the browser engine which could lead to crashes and memory corruption.

Mozilla has said this round of patches will be the last for Firefox 2 and reiterated its request for all users of Firefox 2 to the latest version. It also warned that the Phishing Protection service will no longer be available for Firefox 2 users after this update because the browser uses an outdated version of a protocol used to import a blacklist of phishing sites supplied by Google.

Firefox’s auto update mechanism should automatically download these latest patches or you can manually update by heading to the download site. This comes after a handful of zero-day exploit were discovered earlier this month in all versions of Microsoft’s Internet Explorer, which is due to receive an emergency patch for the problems later today.