Do you mean using Fiddler (great program, definitely a musthave) in place of Wireshark?
In that case you can add its key to a trusted authorities in Firefox and then it swaps nothing, everything seems to be signed properly... Unless I misunderstood your comment.
In that case you can add its key to a trusted authorities in Firefox and then it swaps nothing, everything seems to be signed properly... Unless I misunderstood your comment.