I've been using Windows for a long time with the HTTP Analyzer application, which is basically Wireshark for http/https protocols and is able to actually process https requests the same way as HTTP.
Now I'm using Wireshark in Ubuntu, but it doesn't capture the HTTPS traffic, which is expected but not convenient. I guess the windows app was somehow hooking to the lower level OS events of decrypting the HTTPS response - is there something of this kind for Ubuntu?
You say you're using Wireshark: Here is their wiki page on SSL traffic.