Firefox copy/paste problem

Some odd behavior in Firefox recently where the copy function (Ctrl-C or right-click copy) appears not actually copy into the buffer. Advice on one forum suggested:

You can try to toggle the Boolean pref dom.event.clipboardevents.enabled to false on the about:config page.

http://kb.mozillazine.org/about:config

It also appears to be listed as a bug by Mozilla. According to the bug the copy event is actually occuring but when pasting it is not received properly by another component.

This problem has been bugging me because its making me wonder how far things are going to go into DRM-land with the upcoming web and will organizations like Mozilla be happy to just provide the infrastructure for web content to be hyper-DRMed or will there still be choice and freedom?

Already there are sites which have code to prevent readers from being able to copy text. Something that is truly annoying and aggravating. Imagine if the entire Internet was like viewing locked PDF’s in Acrobat Reader where you can’t even copy text.

I wonder if this current bug is related to some recent attempt to implement this kind of garbage?