Try out Minefield (aka Firefox 3.7 Alpha 1 Pre) as a portable app

I've posted an automated PortableApps.com Installer for Minefield Portable. This is the nightly test build for testing technologies that will be in a later version of Firefox. It's labeled as 3.7 Alpha 1 Pre (which means way before even alpha 1 stage) so it is unstable, may do bad things and similar scary statements. It's not for use as an everyday browser, but it can be interesting to test out features as they land in the Mozilla development trunk.

The installer will automatically download the current trunk build as part of the install process, so it will always be up to date.

It's available here:
https://portableapps.com/apps/internet/firefox_portable/test#minefield