http://tinderbox.mozilla.org/showlog.cgi?log=Firefox-Unittest/1257532039.1257536484.13328.gz OS X 10.5.2 mozilla-central debug test everythingelse on 2009/11/06 10:27:19 { Leaked URLs: http://localhost:8888/ http://localhost:8888/ http://test1.example.org:8000/ [...] https://services.addons.mozilla.org/en-US/firefox/api/1.2/list/featured/all/10/Darwin/3.7a1pre nsStringStats => mAllocCount: 991699 => mReallocCount: 49076 => mFreeCount: 989775 -- LEAKED 1924 !!! => mShareCount: 1239532 => mAdoptCount: 72193 => mAdoptFreeCount: 72189 -- LEAKED 4 !!! INFO | automation.py | Application ran for: 0:11:54.688705 [...] nsTraceRefcntImpl::DumpStatistics: 1016 entries TEST-UNEXPECTED-FAIL | automationutils.processLeakLog() | leaked 370701 bytes during test execution }

Similar leak on the next cycle, on a different box (the opt one): http://tinderbox.mozilla.org/showlog.cgi?log=Firefox-Unittest/1257535161.1257538073.31283.gz OS X 10.5.2 mozilla-central test everythingelse on 2009/11/06 11:19:21 leaked 347257 bytes during test execution Note that this box was green on the changeset that comment 0's cycle was built from. So, this still looks sporadic...

http://tinderbox.mozilla.org/showlog.cgi?log=Firefox-Unittest/1257505839.1257510302.1098.gz OS X 10.5.2 mozilla-central debug test everythingelse on 2009/11/06 03:10:39

http://tinderbox.mozilla.org/showlog.cgi?log=Firefox-Unittest/1259865472.1259868548.12380.gz OS X 10.5.2 mozilla-central test everythingelse

http://tinderbox.mozilla.org/showlog.cgi?log=Firefox3.6-Unittest/1260492055.1260493804.20954.gz OS X 10.5.2 mozilla-1.9.2 test everythingelse on 2009/12/10 16:40:55 s: moz2-darwin9-slave11

http://tinderbox.mozilla.org/showlog.cgi?log=Firefox/1262816633.1262819557.22884.gz OS X 10.5.2 mozilla-central test everythingelse on 2010/01/06 14:23:53

This looks like a dupe of bug 509200. (My bad for filing this as a separate bug)

V.Duplicate