I’m really impressed that even as an alpha it’s seemingly rock solid – and with some really nice enhancements.
Most plugins are written to support the current branch of Firefox – i.e. 1.5.x – I found a plugin to help with these on Bon Echo.
The MR Tech Local Install plugin works with Bon Echo – also it allows the ‘max version’ tag for plugins to be directly overridden. That lets me install all manner of newer plugins on my cutting edge Firefox.