Which is fine, except that Firefox 1.0.6 (linux-i686 en-US at least) appears to have been released on July 19. You waited nearly two months to get a security release.

This isn't your fault, of course, but it points out a problem with waiting for your vendor to release new versions of software with security fixes. I got Firefox 1.0.7 today because I'm installing it myself.

Groovlets, though a refreshing way to not have to risk getting any Java on your clothes, don't at all provide the features of Rails. They are synonymous with Java servlets, which is pretty much the bare metal request/response paradigm, accessible as an API.

The Ruby equivalent to Groovlets is WEBRick's Servlets. Rails can run on top of this, but it provides a much higher level of abstraction.