I reproduced this on a fresh profile. I can provide some information from the VS debugger:<br><div><br></div><div>Actual error message (in German - sorry):</div><div>Unhandled exception at 0x772f40f2 in firefox.exe: 0xC0000374: Ein Heap wurde beschädigt. (means: Heap corruption)</div>


<div><br></div><div>Next error message in debugger is:</div><div>Windows has triggered a breakpoint in firefox.exe.<br>This may be due to a corruption of the heap, which indicates a bug in firefox.exe or any of the DLLs it has loaded. [...]<br>


</div><div><br></div><div>Further this procedure allowed me to make the crash reporter report something on this. For some strange reason they seem to be different (and there were in fact different crash situations):</div>


<div><br></div><div><a href="https://crash-stats.mozilla.com/report/index/bp-6c7b8fc4-ef8d-4776-9202-490942120125" target="_blank">https://crash-stats.mozilla.com/report/index/bp-6c7b8fc4-ef8d-4776-9202-490942120125</a></div>

<div><a href="https://crash-stats.mozilla.com/report/index/bp-b379b883-1c97-45b5-ad63-9c1b62120125" target="_blank">https://crash-stats.mozilla.com/report/index/bp-b379b883-1c97-45b5-ad63-9c1b62120125</a></div>
<div><br></div><div>Regards</div><div>Andreas</div><div><br></div><div>PS: The Call stack of the VS debugger shows:</div><div><br></div><div>>       ntdll.dll!00000000772f40f2()    <br>      [Frames below may be incorrect and/or missing, no symbols loaded for ntdll.dll] <br>


        ntdll.dll!00000000772f4736()    <br>      ntdll.dll!00000000772f5942()    <br>      ntdll.dll!00000000772f75f4()    <br>      ntdll.dll!000000007729157b()    <br>      ntdll.dll!000000007728413d()    <br>      msvcrt.dll!000007fefda610c4()   <br>      DWrite.dll!000007fee8d76c1f()   <br>


        DWrite.dll!000007fee8d76a87()   <br>      DWrite.dll!000007fee8d76ab4()   <br>      DWrite.dll!000007fee8d6ca5a()   <br>      DWrite.dll!000007fee8d6b29b()   <br>      DWrite.dll!000007fee8d697c6()   <br>      DWrite.dll!000007fee8da00fc()   <br>


        DWrite.dll!000007fee8d297fe()   <br>      d2d1.dll!000007fee8b2b2df()     <br>      d2d1.dll!000007fee8b14aab()     <br>      d2d1.dll!000007fee8b4ee31()     <br>      d2d1.dll!000007fee8b169b0()     <br>      d2d1.dll!000007fee8b4ea69()     <br>      d2d1.dll!000007fee8b069cd()     <br>


        d2d1.dll!000007fee8b04ff5()     <br>      d2d1.dll!000007fee8b05921()     <br>      d2d1.dll!000007fee8af9110()     <br>      xul.dll!000007fee9ec398c()      <br>      xul.dll!000007fee961d2af()      <br>      xul.dll!000007fee95ef76b()      <br>      xul.dll!000007fee95ef726()      <br>


        xul.dll!000007fee961c58b()      <br>      xul.dll!000007feea235107()      <br>      xul.dll!000007feea2479a1()      <br>      xul.dll!000007feea247d1c()      <br>      xul.dll!000007feea247d28()      <br>      xul.dll!000007feea293a8d()      <br>      xul.dll!000007feea294165()      <br>


        xul.dll!000007fee95e7545()      <br>      xul.dll!000007fee961edbd()      <br>      xul.dll!000007fee96f07b8()      <br>      xul.dll!000007fee96fd41a()      <br>      xul.dll!000007fee96d0de8()      <br>      xul.dll!000007fee96daee9()      <br>      xul.dll!000007fee95bfd39()      <br>


        xul.dll!000007fee95887aa()      <br>      xul.dll!000007fee9be036b()      <br>      xul.dll!000007fee96f3dad()      <br>      xul.dll!000007fee96dc9f6()      <br>      xul.dll!000007fee96f81d2()      <br>      xul.dll!000007fee96f8212()      <br>      user32.dll!0000000077028971()   <br>


        user32.dll!00000000770272cb()   <br>      user32.dll!0000000077026829()   <br>      ntdll.dll!0000000077281225()    <br>      user32.dll!0000000077026e5a()   <br>      user32.dll!0000000077026e6c()   <br>      xul.dll!000007fee96b25ef()      <br>      xul.dll!000007fee96b214b()      <br>


        xul.dll!000007fee9687178()      <br>      xul.dll!000007fee96c4f01()      <br>      xul.dll!000007fee983d68e()      <br>      xul.dll!000007fee983d655()      <br>      xul.dll!000007fee980790b()      <br>      xul.dll!000007fee981b503()      <br>      xul.dll!000007fee94dcc76()      <br>


        firefox.exe!000000013f05186c()  <br>      firefox.exe!000000013f051bfa()  <br>      kernel32.dll!000000007712652d()         <br>      ntdll.dll!000000007725c521()    <br></div><br><div class="gmail_quote"><div class="im"><br></div></div>
<br>