Resource to get global menu on Ubuntu
Since Komodo IDE does not support Ubuntu global menu out of the box, but there is an unofficial PPA to support it in Komodo Edit, these instructions will allow to "port" the global menu from Komodo Edit to Komodo IDE.
Warning: if you are using Komodo Edit, you do not need these instructions. Just go to Mystic Mirage PPA and follow instructions there.
Download komodo-edit_9.0.0+15707~unitymenubar2.tar.gz or any other appropriate archive,
For your convenience, extract the unity-menubar folder somewhere in your filesystem, suppose you extract it in the /tmp folder.
Under unity-menubar folder you'll find three subfolders: noarch, x86, x86_64. Each of these three subfolders contains a single subdolder, called mozilla.
Depending on your system, you'll need to copy the content of the x86 folder (if your system is 32bit) or the content of the x86_64 folder (if your system is 64bit). Following instructions suppose that you're on a 64bit system, so you need to possibly adapt it in the other case.
Locate the folder in which you installed Komodo, let's suppose it's /opt/komodo.
Copy /tmp/unity-menubar/noarch/mozilla/* to /opt/komodo/lib/mozilla/
Copy /tmp/unity-menubar/x86_64/mozilla/* to /opt/komodo/lib/mozilla/
You're done. Restart Komodo and your menu should be global.