Firefox V1.5.0.4

Firefox V1.5.0.4 is out - it resolves several known security issues, and is marked Critical.

As I noted with V1.5.0.3, it is now downloading automatically. If you have Firefox installed, it may have already updated. If not, you may wish to do this at your convenience, or let the automatic update feature perform the update for you. It's your choice.

If you don't have Firefox yet, why not?