Gimpbox

Installation and Requirements:

- Gimp 2.6.10 or newer.

- Python

For convenience, designed to install with one command.

sudo wget gimpbox.googlecode.com/hg/gimpbox.py -O /usr/local/bin/gimpbox && sudo chmod +x /usr/local/bin/gimpbox

After that, simply change the menu in the settings menu from gimp-2.6 %U to gimpbox %U

Done, now you have a single window Gimp.