Option to create NSS key log file
It would be great to have an option in Burp to create a NSS Key Log file (https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/Key_Log_Format), it would really help debugging problems with SSL client certificates and the like!
Thanks for suggesting this. We have got this on the development plan, although it may be a little while until we get to this.
In the meantime, you can use this tool:- http://jsslkeylog.sourceforge.net/