Recording BBC radio streams from Firefox

For some years I have been archiving BBC radio programmes using SUSE firefox 
and Audacity .  This worked fine up until 10.3 (I skipped 11.0).  I am aware 
of the issues with RealPlayer for 11.1 but I have been been able to use the 
RealPlayer generic rpm to access the programmes on both a 32bit and 64 bit 
install. The problem I find that although I can listen to both live and 
listen again on the listen again sites in firefox audacity will not record 
the stream.  Using Konquerer it will do so..

I am using Firefox 3.0.6-1-x86_x86_64 

I'd be grateful for advice on how to fix this.

TIA

Mike