Comment 6 for bug 88870

Retrace done:
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#3 <signal handler called>
#4 0x00000079 in ?? ()
#5 0xb681968a in nsWindow::OnDragDataReceivedEvent (this=0x83716f0, aWidget=0x74, aDragContext=0x198,
    aX=116, aY=408, aSelectionData=0x18ad64f, aInfo=3218868840, aTime=3078054677, aData=0x806517c)
    at ../../../dist/include/xpcom/nsCOMPtr.h:661
 dragService = {<nsCOMPtr_base> = {mRawPtr = 0xb68195eb}, <No data fields>}
 dragSessionGTK = {<nsCOMPtr_base> = {mRawPtr = 0xb682d673}, <No data fields>}
#6 0xb6819d45 in nsWindow::OnDragEnter (this=0x198, aX=139729024, aY=138194984)
    at ../../../dist/include/widget/nsGUIEvent.h:644
 event = {<nsInputEvent> = {<nsGUIEvent> = {<nsEvent> = {eventStructType = 194 ,
        message = 136903752, point = {x = 1075220280, y = 152233792}, refPoint = {x = 16,
          y = 136899304}, time = 1, flags = 51, internalAppFlags = 3085058485, userType = 0xb67e1174},
      widget = 0x1, nativeMsg = 0xbfdc0ab8}, isShift = -1233260651, isControl = 3, isAlt = -1216584472,
    isMeta = -1076098296}, clickCount = 408, acceptActivation = 116 't', reason = nsMouseEvent::eReal}
 status = 137413432
 dragService = {<nsCOMPtr_base> = {mRawPtr = 0x830c360}, <No data fields>}
...

Tagging as mt-confirm for further processing