STR: 1. Install Restartless Restart 8  and SmartSearch 3.19 . Restart. 2. Open about:compartments. Note existing compartments. 2. Go to any website. 3. Right-click on a link an "Open Link in New Window". 4. Close the new window and its originating tab, and refresh about:compartments a few times. You should see ghost windows and zombie compartments from the website. 5. Disable Restartless Restart and refresh about:compartments. 6. The zombies and ghosts are dead.  https://addons.mozilla.org/en-US/firefox/addon/restartless-restart/  https://addons.mozilla.org/en-us/firefox/addon/smartsearch/
Forgot to mention, this is on the 2012-04-06 Nightly.
You need both restartless restart and smartsearch to see this leak?
Confirming the issue. And also that disabling either addon stops the leak erik: would you mind having a look in restartless restart to see if you can establish where the leak is coming from?
Note that bug 743215 has similar steps to reproduce (open a new window), and both add-ons are authored by the same developer, so this may be related to common code in both add-ons.
(In reply to Jorge Villalobos [:jorgev] from comment #5) > Note that bug 743215 has similar steps to reproduce (open a new window), and > both add-ons are authored by the same developer, so this may be related to > common code in both add-ons. I just tried with a FF18 trunk build and couldn't reproduce, so I'm guessing that Firefox 15 fixes this problem, even though it didn't fix bug 743215.