password remember for proxy when updating addon

Currently when you have a proxy server set which needs a password, firefox 
prompts you to save the password and subsequently pre-fills it - great - 
expected, wanted.

But when it you first start it up and it finds updates for add ons the 
remembered information module is not used ... be good to use that in this 
case too.

Can send screen shots if more explanation is required.

Regards
Tushar