Upgrade to Fritzing 0.9.3 on Ubuntu 14.04 missing Menu Bar.
How did you upgrade, via a package manager or from the install file on fritzing.org? I used the fritzing.org version on 16.04 without issues. You may need to delete the user directories first (keep a copy if you have sketches in them as well) although I;ve only used 9.3B and thus don’t have an upgrade experience.
Peter