Submitt Disk Info to Musicbrainz Just Opens Website

Package: sound-juicer
Version: 3.4.0-1ubuntu1
Reproducible: Always
Ubuntu Version: 12.04 LTS 32-bit

I often get CDs from local emerging artists and they are rarely on MusicBrainz already.
I use Sound Juicer to quickly enter the details of these artists and CDs and add their CD to my mp3 collection.

A banner appears on Sound Juicer asking if I want to submit these new details to MusicBrainz. I click to add them.

Unfortunately this DOES NOT submit the details. It just opens up a browser window with the MusicBrainz website and doesn't submit anything for me. :-(
I have made an account on MusicBrainz and tried submitting while I'm logged in but am still just taken to the MusicBrainz website where I can MANUALLY enter the data (after having confirmed my email address, read their guidelines, etc.) That's a heck of a lot of trouble to go to for just contributing to a community database.
Sound Juicer has a much easier interface than MusicBrainz for entering CD information and all I want, and am willing to do, is to submit the track information so that someone else using sound juicer or similar doesn't have to enter it, and I don't have to enter it again if I ever need to re-rip the CDs.

I've searched through MusicBrainz help system and it says that I can use Sound Juicer to add tracks but it doesn't tell me HOW.

Does this automatic submission to work?

Thank you.
Jesse