Firefox leaks pretty much everything for each of its chrome windows. This is a
regression from bug 207188.
Created attachment 145565 [details] [diff] [review]
The browser.js changes are the real fix, the browser.xml changes are because it
*** Bug 239825 has been marked as a duplicate of this bug. ***
Comment on attachment 145565 [details] [diff] [review]
Sorry, I'm an idiot.
Fix checked in to trunk.
Note that this fix wasn't quite right: see bug 283116.