- New SSL error pages: clearer and stricter error pages are used when Firefox encounters an invalid SSL certificate.
- Add-ons and Plugin version check: Firefox now automatically checks add-on and plugin versions and will disable older, insecure versions.
- Secure add-on updates: to improve add-on update security, add-ons that provide updates in an insecure manner will be disabled.
- Anti-virus integration: Firefox will inform anti-virus software when downloading executables.
Firefox 3, like its predecessors, is a solid competitor for Internet Explorer, and provides a wonderful option for those seeking an alternative web browser. Just remember, you still have to pay attention to vulnerability alerts and exploits, and keep your Firefox installation up to date to stay protected against new and emerging threats.