[&1.5] Don't delete the properties of a context that was just destroyed. This was added in an attempt to reduce leaks, but there was no evidence that it did anything. We need to remove it now because the context is bound into the nested event loop which continues to run if the user reloads during debugging. When the event loop eventually exits, the context will be deleted. 
[&1.5] Don't delete the properties of a context that was just destroyed. This was added in an attempt to reduce leaks, but there was no evidence that it did anything. We need to remove it now because the context is bound into the nested event loop which continues to run if the user reloads during debugging. When the event loop eventually exits, the context will be deleted. 

http://code.google.com/p/fbug/source/detail?r=6095

firebug/tracing-console,firebug/tracing-console