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Firefox crashes

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Firefox crashes at launch.

Event ID: 1000

Faulting application name: firefox.exe, version: 46.0.1.5966, time stamp: 0x572808c7 Faulting module name: MSVCR120.dll, version: 12.0.21005.1, time stamp: 0x524f7ce6 Exception code: 0xc0000005 Fault offset: 0x00013b0b Faulting process id: 0xa3c Faulting application start time: 0x01d1ad6180698387 Faulting application path: C:\Program Files (x86)\Mozilla Firefox\firefox.exe Faulting module path: C:\Program Files (x86)\Trusteer\Rapport\bin\MSVCR120.dll Report Id: c015ffa0-1954-11e6-9a34-b083fe97de4a

sfc /scannow as admin does not help

malwarebyes scan comes back clean

issue occurs on multiple user profiles on the same system

Firefox crashes at launch. Event ID: 1000 Faulting application name: firefox.exe, version: 46.0.1.5966, time stamp: 0x572808c7 Faulting module name: MSVCR120.dll, version: 12.0.21005.1, time stamp: 0x524f7ce6 Exception code: 0xc0000005 Fault offset: 0x00013b0b Faulting process id: 0xa3c Faulting application start time: 0x01d1ad6180698387 Faulting application path: C:\Program Files (x86)\Mozilla Firefox\firefox.exe Faulting module path: C:\Program Files (x86)\Trusteer\Rapport\bin\MSVCR120.dll Report Id: c015ffa0-1954-11e6-9a34-b083fe97de4a sfc /scannow as admin does not help malwarebyes scan comes back clean issue occurs on multiple user profiles on the same system

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Try to start Firefox in Safe Mode to see if that works.

  • Windows: hold down the Shift key while starting Firefox
  • Mac: hold down the Options key while starting Firefox

If you have submitted crash reports then please post the IDs of one or more recent crash reports that start with "bp-".

  • bp-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx

You can find the report ID of recent crash reports on the "Help > Troubleshooting Information" page (about:support).

  • click the "All Crash Reports" button on this page to open the about:crashes page and see all crash reports.

Alternatively you can open about:crashes via the location/address bar.

See also:

If you can't start Firefox, see: