Comment 73 for bug 685552

Ivaylo BOTUSHAROVA, thank you for your link to manually correct the problem.
My problem was the same, but under "normal Ubuntu" instead of "Unity". It was impossible also to enable or disable a plugin without crashing the config of compiz.
I followed this article, and during my test, I had to use "compizconfig-settings-manager, preferences, Profile & Backend, return to the default (the one I use is" standard "and not " unity ").
Everything is then returned to normal, I can now use all the options I want without causing a crash.
I don't know why the "return to default" function, while the default config plant, but ... problem solved.
(excuse my English, but if that little help).