Created attachment 594583 [details] log 1. http://www.suffolkcamra.co.uk/pubs/place/39#tab1 2. Click in the box where it says "here are rabbit-warrens..." 3. ASSERT|ABORT Beta/11, Aurora/12, Nightly/13 Linux and Mac at least. ###!!! ASSERTION: aForFrame not found in block, someone lied to us: 'isValid', file /work/mozilla/builds/nightly/mozilla/layout/generic/nsTextFrameThebes.cpp, line 1213 ###!!! ABORT: comparing iterators over different lists: 'mListLink == aOther.mListLink', file /work/mozilla/builds/nightly/mozilla/layout/base/../generic/nsLineBox.h, line 724 Crashes Mac Aurora nightly at least but I can't get a crash reporter dialog to come up there though Beta does. bp-f298ea48-f4b2-4104-b9a9-cb0c82120205
The patch in bug 638937 appears to fix this crash also.