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Firefox dev edition v84 won't start

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Hi there folks :)

My ff dev edition v 84.0.0.7628 just won't start. It doesn't show up in task manager, not even briefly when I attempt to start ff. The only reference I can find to it starting is within task manager and the following are the events logged immediately after, apologies for the verboseness of the logs, but I thought they may be useful in identifying the problem.

For the record, I can find no trace of iseguard64.dll or iseguard32.dll on my system as I have read these have caused problems in the past!

Thank you for any assistance that you can provide.

There is a stack of six events in total:

first event log entry after trying to start the app Log Name: Application Source: Application Error Date: 20/11/2020 17:23:03 Event ID: 1000 Task Category: (100) Level: Error Keywords: Classic User: N/A Computer: tosh Description: Faulting application name: firefox.exe, version: 84.0.0.7628, time stamp: 0x5fb6e10b Faulting module name: unknown, version: 0.0.0.0, time stamp: 0x00000000 Exception code: 0xc0000005 Fault offset: 0x0000000000000000 Faulting process id: 0x29c Faulting application start time: 0x01d6bf61cc48e6a3 Faulting application path: C:\Program Files\Firefox Developer Edition\firefox.exe Faulting module path: unknown Report Id: 4202694a-9405-43b2-9bb5-c9bff857438b Faulting package full name: Faulting package-relative application ID: Event Xml: <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"> 

 <System>
   <Provider Name="Application Error" />
   <EventID Qualifiers="0">1000</EventID>
   <Version>0</Version>
   <Level>2</Level>
   <Task>100</Task>
   <Opcode>0</Opcode>
   <Keywords>0x80000000000000</Keywords>
   <TimeCreated SystemTime="2020-11-20T17:23:03.3581456Z" />
   <EventRecordID>13613</EventRecordID>
   <Correlation />
   <Execution ProcessID="0" ThreadID="0" />
   <Channel>Application</Channel>
   <Computer>tosh</Computer>
   <Security />
 </System>
 <EventData>
   <Data>firefox.exe</Data>
   <Data>84.0.0.7628</Data>
   <Data>5fb6e10b</Data>
   <Data>unknown</Data>
   <Data>0.0.0.0</Data>
   <Data>00000000</Data>
   <Data>c0000005</Data>
   <Data>0000000000000000</Data>
   <Data>29c</Data>
   <Data>01d6bf61cc48e6a3</Data>
   <Data>C:\Program Files\Firefox Developer Edition\firefox.exe</Data>
   <Data>unknown</Data>
   <Data>4202694a-9405-43b2-9bb5-c9bff857438b</Data>
   <Data>
   </Data>
   <Data>
   </Data>
 </EventData>

</Event>

second event log entry after trying to start the app Log Name: Application Source: Windows Error Reporting Date: 20/11/2020 17:23:05 Event ID: 1001 Task Category: None Level: Information Keywords: Classic User: N/A Computer: tosh Description: Fault bucket , type 0 Event Name: BEX64 Response: Not available Cab Id: 0

Problem signature: P1: firefox.exe P2: 84.0.0.7628 P3: 5fb6e10b P4: StackHash_ac46 P5: 0.0.0.0 P6: 00000000 P7: PCH_B8_FROM_ntdll+0x000000000009C8F4 P8: c0000005 P9: 0000000000000008 P10:

Attached files:

These files may be available here: \\?\C:\ProgramData\Microsoft\Windows\WER\ReportQueue\AppCrash_firefox.exe_55876118989b5c33478674b7b4d4852e4a70fb_55a7fae7_27422a17-4a47-480f-b40b-64620831fbdf

Analysis symbol: Rechecking for solution: 0 Report Id: 4202694a-9405-43b2-9bb5-c9bff857438b Report Status: 4 Hashed bucket: Cab Guid: 0 Event Xml: <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"> 

 <System>
   <Provider Name="Windows Error Reporting" />
   <EventID Qualifiers="0">1001</EventID>
   <Version>0</Version>
   <Level>4</Level>
   <Task>0</Task>
   <Opcode>0</Opcode>
   <Keywords>0x80000000000000</Keywords>
   <TimeCreated SystemTime="2020-11-20T17:23:05.7507071Z" />
   <EventRecordID>13614</EventRecordID>
   <Correlation />
   <Execution ProcessID="0" ThreadID="0" />
   <Channel>Application</Channel>
   <Computer>tosh</Computer>
   <Security />
 </System>
 <EventData>
   <Data>
   </Data>
   <Data>0</Data>
   <Data>BEX64</Data>
   <Data>Not available</Data>
   <Data>0</Data>
   <Data>firefox.exe</Data>
   <Data>84.0.0.7628</Data>
   <Data>5fb6e10b</Data>
   <Data>StackHash_ac46</Data>
   <Data>0.0.0.0</Data>
   <Data>00000000</Data>
   <Data>PCH_B8_FROM_ntdll+0x000000000009C8F4</Data>
   <Data>c0000005</Data>
   <Data>0000000000000008</Data>
   <Data>
   </Data>
   <Data>
   </Data>
   <Data>\\?\C:\ProgramData\Microsoft\Windows\WER\ReportQueue\AppCrash_firefox.exe_55876118989b5c33478674b7b4d4852e4a70fb_55a7fae7_27422a17-4a47-480f-b40b-64620831fbdf</Data>
   <Data>
   </Data>
   <Data>0</Data>
   <Data>4202694a-9405-43b2-9bb5-c9bff857438b</Data>
   <Data>4</Data>
   <Data>
   </Data>
   <Data>0</Data>
 </EventData>

</Event>

third event log entry after trying to start the app Log Name: Application Source: Application Error Date: 20/11/2020 17:23:07 Event ID: 1000 Task Category: (100) Level: Error Keywords: Classic User: N/A Computer: tosh Description: Faulting application name: firefox.exe, version: 84.0.0.7628, time stamp: 0x5fb6e10b Faulting module name: unknown, version: 0.0.0.0, time stamp: 0x00000000 Exception code: 0xc000041d Fault offset: 0x0000000000000000 Faulting process id: 0x29c Faulting application start time: 0x01d6bf61cc48e6a3 Faulting application path: C:\Program Files\Firefox Developer Edition\firefox.exe Faulting module path: unknown Report Id: 109734d1-23a5-47d8-ba21-766313ece4fc Faulting package full name: Faulting package-relative application ID: Event Xml: <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"> 

 <System>
   <Provider Name="Application Error" />
   <EventID Qualifiers="0">1000</EventID>
   <Version>0</Version>
   <Level>2</Level>
   <Task>100</Task>
   <Opcode>0</Opcode>
   <Keywords>0x80000000000000</Keywords>
   <TimeCreated SystemTime="2020-11-20T17:23:07.8794020Z" />
   <EventRecordID>13615</EventRecordID>
   <Correlation />
   <Execution ProcessID="0" ThreadID="0" />
   <Channel>Application</Channel>
   <Computer>tosh</Computer>
   <Security />
 </System>
 <EventData>
   <Data>firefox.exe</Data>
   <Data>84.0.0.7628</Data>
   <Data>5fb6e10b</Data>
   <Data>unknown</Data>
   <Data>0.0.0.0</Data>
   <Data>00000000</Data>
   <Data>c000041d</Data>
   <Data>0000000000000000</Data>
   <Data>29c</Data>
   <Data>01d6bf61cc48e6a3</Data>
   <Data>C:\Program Files\Firefox Developer Edition\firefox.exe</Data>
   <Data>unknown</Data>
   <Data>109734d1-23a5-47d8-ba21-766313ece4fc</Data>
   <Data>
   </Data>
   <Data>
   </Data>
 </EventData>

</Event>

fourth event log entry after trying to start the app Log Name: Application Source: Windows Error Reporting Date: 20/11/2020 17:23:08 Event ID: 1001 Task Category: None Level: Information Keywords: Classic User: N/A Computer: tosh Description: Fault bucket 1857339184531848062, type 5 Event Name: BEX64 Response: Not available Cab Id: 0

Problem signature: P1: firefox.exe P2: 84.0.0.7628 P3: 5fb6e10b P4: StackHash_ac46 P5: 0.0.0.0 P6: 00000000 P7: PCH_B8_FROM_ntdll+0x000000000009C8F4 P8: c0000005 P9: 0000000000000008 P10:

Attached files: \\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WERD2E3.tmp.WERInternalMetadata.xml

These files may be available here: \\?\C:\ProgramData\Microsoft\Windows\WER\ReportArchive\AppCrash_firefox.exe_55876118989b5c33478674b7b4d4852e4a70fb_55a7fae7_27422a17-4a47-480f-b40b-64620831fbdf

Analysis symbol: Rechecking for solution: 0 Report Id: 4202694a-9405-43b2-9bb5-c9bff857438b Report Status: 268435456 Hashed bucket: c8db45876f31932be9c69825d16f3b7e Cab Guid: 0 Event Xml: <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"> 

 <System>
   <Provider Name="Windows Error Reporting" />
   <EventID Qualifiers="0">1001</EventID>
   <Version>0</Version>
   <Level>4</Level>
   <Task>0</Task>
   <Opcode>0</Opcode>
   <Keywords>0x80000000000000</Keywords>
   <TimeCreated SystemTime="2020-11-20T17:23:08.1452493Z" />
   <EventRecordID>13616</EventRecordID>
   <Correlation />
   <Execution ProcessID="0" ThreadID="0" />
   <Channel>Application</Channel>
   <Computer>tosh</Computer>
   <Security />
 </System>
 <EventData>
   <Data>1857339184531848062</Data>
   <Data>5</Data>
   <Data>BEX64</Data>
   <Data>Not available</Data>
   <Data>0</Data>
   <Data>firefox.exe</Data>
   <Data>84.0.0.7628</Data>
   <Data>5fb6e10b</Data>
   <Data>StackHash_ac46</Data>
   <Data>0.0.0.0</Data>
   <Data>00000000</Data>
   <Data>PCH_B8_FROM_ntdll+0x000000000009C8F4</Data>
   <Data>c0000005</Data>
   <Data>0000000000000008</Data>
   <Data>
   </Data>
   <Data>

\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WERD2E3.tmp.WERInternalMetadata.xml</Data> 

   <Data>\\?\C:\ProgramData\Microsoft\Windows\WER\ReportArchive\AppCrash_firefox.exe_55876118989b5c33478674b7b4d4852e4a70fb_55a7fae7_27422a17-4a47-480f-b40b-64620831fbdf</Data>
   <Data>
   </Data>
   <Data>0</Data>
   <Data>4202694a-9405-43b2-9bb5-c9bff857438b</Data>
   <Data>268435456</Data>
   <Data>c8db45876f31932be9c69825d16f3b7e</Data>
   <Data>0</Data>
 </EventData>

</Event>

fifth event log entry after trying to start the app Log Name: Application Source: Windows Error Reporting Date: 20/11/2020 17:23:10 Event ID: 1001 Task Category: None Level: Information Keywords: Classic User: N/A Computer: tosh Description: Fault bucket , type 0 Event Name: APPCRASH Response: Not available Cab Id: 0

Problem signature: P1: firefox.exe P2: 84.0.0.7628 P3: 5fb6e10b P4: StackHash_72a0 P5: 0.0.0.0 P6: 00000000 P7: c000041d P8: PCH_84_FROM_unknown+0x0000000000000000 P9: P10:

Attached files:

These files may be available here: \\?\C:\ProgramData\Microsoft\Windows\WER\ReportQueue\AppCrash_firefox.exe_726c637c55114d11c6ebcea25a332f6ac2d0cee3_55a7fae7_02334b5f-37a7-4852-83a4-05b597061c67

Analysis symbol: Rechecking for solution: 0 Report Id: 109734d1-23a5-47d8-ba21-766313ece4fc Report Status: 4 Hashed bucket: Cab Guid: 0 Event Xml: <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"> 

 <System>
   <Provider Name="Windows Error Reporting" />
   <EventID Qualifiers="0">1001</EventID>
   <Version>0</Version>
   <Level>4</Level>
   <Task>0</Task>
   <Opcode>0</Opcode>
   <Keywords>0x80000000000000</Keywords>
   <TimeCreated SystemTime="2020-11-20T17:23:10.3214766Z" />
   <EventRecordID>13617</EventRecordID>
   <Correlation />
   <Execution ProcessID="0" ThreadID="0" />
   <Channel>Application</Channel>
   <Computer>tosh</Computer>
   <Security />
 </System>
 <EventData>
   <Data>
   </Data>
   <Data>0</Data>
   <Data>APPCRASH</Data>
   <Data>Not available</Data>
   <Data>0</Data>
   <Data>firefox.exe</Data>
   <Data>84.0.0.7628</Data>
   <Data>5fb6e10b</Data>
   <Data>StackHash_72a0</Data>
   <Data>0.0.0.0</Data>
   <Data>00000000</Data>
   <Data>c000041d</Data>
   <Data>PCH_84_FROM_unknown+0x0000000000000000</Data>
   <Data>
   </Data>
   <Data>
   </Data>
   <Data>
   </Data>
   <Data>\\?\C:\ProgramData\Microsoft\Windows\WER\ReportQueue\AppCrash_firefox.exe_726c637c55114d11c6ebcea25a332f6ac2d0cee3_55a7fae7_02334b5f-37a7-4852-83a4-05b597061c67</Data>
   <Data>
   </Data>
   <Data>0</Data>
   <Data>109734d1-23a5-47d8-ba21-766313ece4fc</Data>
   <Data>4</Data>
   <Data>
   </Data>
   <Data>0</Data>
 </EventData>

</Event>

sixth event log entry after trying to start the app Log Name: Application Source: Windows Error Reporting Date: 20/11/2020 17:23:13 Event ID: 1001 Task Category: None Level: Information Keywords: Classic User: N/A Computer: tosh Description: Fault bucket 2110652166693828385, type 4 Event Name: APPCRASH Response: Not available Cab Id: 0

Problem signature: P1: firefox.exe P2: 84.0.0.7628 P3: 5fb6e10b P4: StackHash_72a0 P5: 0.0.0.0 P6: 00000000 P7: c000041d P8: PCH_84_FROM_unknown+0x0000000000000000 P9: P10:

Attached files: \\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WERE503.tmp.WERInternalMetadata.xml

These files may be available here: \\?\C:\ProgramData\Microsoft\Windows\WER\ReportArchive\AppCrash_firefox.exe_726c637c55114d11c6ebcea25a332f6ac2d0cee3_55a7fae7_02334b5f-37a7-4852-83a4-05b597061c67

Analysis symbol: Rechecking for solution: 0 Report Id: 109734d1-23a5-47d8-ba21-766313ece4fc Report Status: 268435456 Hashed bucket: 86d39970f0e48ca31d4a8af68031b721 Cab Guid: 0 Event Xml: <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"> 

 <System>
   <Provider Name="Windows Error Reporting" />
   <EventID Qualifiers="0">1001</EventID>
   <Version>0</Version>
   <Level>4</Level>
   <Task>0</Task>
   <Opcode>0</Opcode>
   <Keywords>0x80000000000000</Keywords>
   <TimeCreated SystemTime="2020-11-20T17:23:13.1676745Z" />
   <EventRecordID>13618</EventRecordID>
   <Correlation />
   <Execution ProcessID="0" ThreadID="0" />
   <Channel>Application</Channel>
   <Computer>tosh</Computer>
   <Security />
 </System>
 <EventData>
   <Data>2110652166693828385</Data>
   <Data>4</Data>
   <Data>APPCRASH</Data>
   <Data>Not available</Data>
   <Data>0</Data>
   <Data>firefox.exe</Data>
   <Data>84.0.0.7628</Data>
   <Data>5fb6e10b</Data>
   <Data>StackHash_72a0</Data>
   <Data>0.0.0.0</Data>
   <Data>00000000</Data>
   <Data>c000041d</Data>
   <Data>PCH_84_FROM_unknown+0x0000000000000000</Data>
   <Data>
   </Data>
   <Data>
   </Data>
   <Data>

\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WERE503.tmp.WERInternalMetadata.xml</Data> 

   <Data>\\?\C:\ProgramData\Microsoft\Windows\WER\ReportArchive\AppCrash_firefox.exe_726c637c55114d11c6ebcea25a332f6ac2d0cee3_55a7fae7_02334b5f-37a7-4852-83a4-05b597061c67</Data>
   <Data>
   </Data>
   <Data>0</Data>
   <Data>109734d1-23a5-47d8-ba21-766313ece4fc</Data>
   <Data>268435456</Data>
   <Data>86d39970f0e48ca31d4a8af68031b721</Data>
   <Data>0</Data>
 </EventData>

</Event>

Hi there folks :) My ff dev edition v 84.0.0.7628 just won't start. It doesn't show up in task manager, not even briefly when I attempt to start ff. The only reference I can find to it starting is within task manager and the following are the events logged immediately after, apologies for the verboseness of the logs, but I thought they may be useful in identifying the problem. For the record, I can find no trace of iseguard64.dll or iseguard32.dll on my system as I have read these have caused problems in the past! Thank you for any assistance that you can provide. There is a stack of six events in total: '''first event log entry after trying to start the app''' Log Name: Application Source: Application Error Date: 20/11/2020 17:23:03 Event ID: 1000 Task Category: (100) Level: Error Keywords: Classic User: N/A Computer: tosh Description: Faulting application name: firefox.exe, version: 84.0.0.7628, time stamp: 0x5fb6e10b Faulting module name: unknown, version: 0.0.0.0, time stamp: 0x00000000 Exception code: 0xc0000005 Fault offset: 0x0000000000000000 Faulting process id: 0x29c Faulting application start time: 0x01d6bf61cc48e6a3 Faulting application path: C:\Program Files\Firefox Developer Edition\firefox.exe Faulting module path: unknown Report Id: 4202694a-9405-43b2-9bb5-c9bff857438b Faulting package full name: Faulting package-relative application ID: Event Xml: <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"> <System> <Provider Name="Application Error" /> <EventID Qualifiers="0">1000</EventID> <Version>0</Version> <Level>2</Level> <Task>100</Task> <Opcode>0</Opcode> <Keywords>0x80000000000000</Keywords> <TimeCreated SystemTime="2020-11-20T17:23:03.3581456Z" /> <EventRecordID>13613</EventRecordID> <Correlation /> <Execution ProcessID="0" ThreadID="0" /> <Channel>Application</Channel> <Computer>tosh</Computer> <Security /> </System> <EventData> <Data>firefox.exe</Data> <Data>84.0.0.7628</Data> <Data>5fb6e10b</Data> <Data>unknown</Data> <Data>0.0.0.0</Data> <Data>00000000</Data> <Data>c0000005</Data> <Data>0000000000000000</Data> <Data>29c</Data> <Data>01d6bf61cc48e6a3</Data> <Data>C:\Program Files\Firefox Developer Edition\firefox.exe</Data> <Data>unknown</Data> <Data>4202694a-9405-43b2-9bb5-c9bff857438b</Data> <Data> </Data> <Data> </Data> </EventData> </Event> '''second event log entry after trying to start the app''' Log Name: Application Source: Windows Error Reporting Date: 20/11/2020 17:23:05 Event ID: 1001 Task Category: None Level: Information Keywords: Classic User: N/A Computer: tosh Description: Fault bucket , type 0 Event Name: BEX64 Response: Not available Cab Id: 0 Problem signature: P1: firefox.exe P2: 84.0.0.7628 P3: 5fb6e10b P4: StackHash_ac46 P5: 0.0.0.0 P6: 00000000 P7: PCH_B8_FROM_ntdll+0x000000000009C8F4 P8: c0000005 P9: 0000000000000008 P10: Attached files: These files may be available here: \\?\C:\ProgramData\Microsoft\Windows\WER\ReportQueue\AppCrash_firefox.exe_55876118989b5c33478674b7b4d4852e4a70fb_55a7fae7_27422a17-4a47-480f-b40b-64620831fbdf Analysis symbol: Rechecking for solution: 0 Report Id: 4202694a-9405-43b2-9bb5-c9bff857438b Report Status: 4 Hashed bucket: Cab Guid: 0 Event Xml: <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"> <System> <Provider Name="Windows Error Reporting" /> <EventID Qualifiers="0">1001</EventID> <Version>0</Version> <Level>4</Level> <Task>0</Task> <Opcode>0</Opcode> <Keywords>0x80000000000000</Keywords> <TimeCreated SystemTime="2020-11-20T17:23:05.7507071Z" /> <EventRecordID>13614</EventRecordID> <Correlation /> <Execution ProcessID="0" ThreadID="0" /> <Channel>Application</Channel> <Computer>tosh</Computer> <Security /> </System> <EventData> <Data> </Data> <Data>0</Data> <Data>BEX64</Data> <Data>Not available</Data> <Data>0</Data> <Data>firefox.exe</Data> <Data>84.0.0.7628</Data> <Data>5fb6e10b</Data> <Data>StackHash_ac46</Data> <Data>0.0.0.0</Data> <Data>00000000</Data> <Data>PCH_B8_FROM_ntdll+0x000000000009C8F4</Data> <Data>c0000005</Data> <Data>0000000000000008</Data> <Data> </Data> <Data> </Data> <Data>\\?\C:\ProgramData\Microsoft\Windows\WER\ReportQueue\AppCrash_firefox.exe_55876118989b5c33478674b7b4d4852e4a70fb_55a7fae7_27422a17-4a47-480f-b40b-64620831fbdf</Data> <Data> </Data> <Data>0</Data> <Data>4202694a-9405-43b2-9bb5-c9bff857438b</Data> <Data>4</Data> <Data> </Data> <Data>0</Data> </EventData> </Event> '''third event log entry after trying to start the app''' Log Name: Application Source: Application Error Date: 20/11/2020 17:23:07 Event ID: 1000 Task Category: (100) Level: Error Keywords: Classic User: N/A Computer: tosh Description: Faulting application name: firefox.exe, version: 84.0.0.7628, time stamp: 0x5fb6e10b Faulting module name: unknown, version: 0.0.0.0, time stamp: 0x00000000 Exception code: 0xc000041d Fault offset: 0x0000000000000000 Faulting process id: 0x29c Faulting application start time: 0x01d6bf61cc48e6a3 Faulting application path: C:\Program Files\Firefox Developer Edition\firefox.exe Faulting module path: unknown Report Id: 109734d1-23a5-47d8-ba21-766313ece4fc Faulting package full name: Faulting package-relative application ID: Event Xml: <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"> <System> <Provider Name="Application Error" /> <EventID Qualifiers="0">1000</EventID> <Version>0</Version> <Level>2</Level> <Task>100</Task> <Opcode>0</Opcode> <Keywords>0x80000000000000</Keywords> <TimeCreated SystemTime="2020-11-20T17:23:07.8794020Z" /> <EventRecordID>13615</EventRecordID> <Correlation /> <Execution ProcessID="0" ThreadID="0" /> <Channel>Application</Channel> <Computer>tosh</Computer> <Security /> </System> <EventData> <Data>firefox.exe</Data> <Data>84.0.0.7628</Data> <Data>5fb6e10b</Data> <Data>unknown</Data> <Data>0.0.0.0</Data> <Data>00000000</Data> <Data>c000041d</Data> <Data>0000000000000000</Data> <Data>29c</Data> <Data>01d6bf61cc48e6a3</Data> <Data>C:\Program Files\Firefox Developer Edition\firefox.exe</Data> <Data>unknown</Data> <Data>109734d1-23a5-47d8-ba21-766313ece4fc</Data> <Data> </Data> <Data> </Data> </EventData> </Event> '''fourth event log entry after trying to start the app''' Log Name: Application Source: Windows Error Reporting Date: 20/11/2020 17:23:08 Event ID: 1001 Task Category: None Level: Information Keywords: Classic User: N/A Computer: tosh Description: Fault bucket 1857339184531848062, type 5 Event Name: BEX64 Response: Not available Cab Id: 0 Problem signature: P1: firefox.exe P2: 84.0.0.7628 P3: 5fb6e10b P4: StackHash_ac46 P5: 0.0.0.0 P6: 00000000 P7: PCH_B8_FROM_ntdll+0x000000000009C8F4 P8: c0000005 P9: 0000000000000008 P10: Attached files: \\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WERD2E3.tmp.WERInternalMetadata.xml These files may be available here: \\?\C:\ProgramData\Microsoft\Windows\WER\ReportArchive\AppCrash_firefox.exe_55876118989b5c33478674b7b4d4852e4a70fb_55a7fae7_27422a17-4a47-480f-b40b-64620831fbdf Analysis symbol: Rechecking for solution: 0 Report Id: 4202694a-9405-43b2-9bb5-c9bff857438b Report Status: 268435456 Hashed bucket: c8db45876f31932be9c69825d16f3b7e Cab Guid: 0 Event Xml: <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"> <System> <Provider Name="Windows Error Reporting" /> <EventID Qualifiers="0">1001</EventID> <Version>0</Version> <Level>4</Level> <Task>0</Task> <Opcode>0</Opcode> <Keywords>0x80000000000000</Keywords> <TimeCreated SystemTime="2020-11-20T17:23:08.1452493Z" /> <EventRecordID>13616</EventRecordID> <Correlation /> <Execution ProcessID="0" ThreadID="0" /> <Channel>Application</Channel> <Computer>tosh</Computer> <Security /> </System> <EventData> <Data>1857339184531848062</Data> <Data>5</Data> <Data>BEX64</Data> <Data>Not available</Data> <Data>0</Data> <Data>firefox.exe</Data> <Data>84.0.0.7628</Data> <Data>5fb6e10b</Data> <Data>StackHash_ac46</Data> <Data>0.0.0.0</Data> <Data>00000000</Data> <Data>PCH_B8_FROM_ntdll+0x000000000009C8F4</Data> <Data>c0000005</Data> <Data>0000000000000008</Data> <Data> </Data> <Data> \\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WERD2E3.tmp.WERInternalMetadata.xml</Data> <Data>\\?\C:\ProgramData\Microsoft\Windows\WER\ReportArchive\AppCrash_firefox.exe_55876118989b5c33478674b7b4d4852e4a70fb_55a7fae7_27422a17-4a47-480f-b40b-64620831fbdf</Data> <Data> </Data> <Data>0</Data> <Data>4202694a-9405-43b2-9bb5-c9bff857438b</Data> <Data>268435456</Data> <Data>c8db45876f31932be9c69825d16f3b7e</Data> <Data>0</Data> </EventData> </Event> '''fifth event log entry after trying to start the app''' Log Name: Application Source: Windows Error Reporting Date: 20/11/2020 17:23:10 Event ID: 1001 Task Category: None Level: Information Keywords: Classic User: N/A Computer: tosh Description: Fault bucket , type 0 Event Name: APPCRASH Response: Not available Cab Id: 0 Problem signature: P1: firefox.exe P2: 84.0.0.7628 P3: 5fb6e10b P4: StackHash_72a0 P5: 0.0.0.0 P6: 00000000 P7: c000041d P8: PCH_84_FROM_unknown+0x0000000000000000 P9: P10: Attached files: These files may be available here: \\?\C:\ProgramData\Microsoft\Windows\WER\ReportQueue\AppCrash_firefox.exe_726c637c55114d11c6ebcea25a332f6ac2d0cee3_55a7fae7_02334b5f-37a7-4852-83a4-05b597061c67 Analysis symbol: Rechecking for solution: 0 Report Id: 109734d1-23a5-47d8-ba21-766313ece4fc Report Status: 4 Hashed bucket: Cab Guid: 0 Event Xml: <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"> <System> <Provider Name="Windows Error Reporting" /> <EventID Qualifiers="0">1001</EventID> <Version>0</Version> <Level>4</Level> <Task>0</Task> <Opcode>0</Opcode> <Keywords>0x80000000000000</Keywords> <TimeCreated SystemTime="2020-11-20T17:23:10.3214766Z" /> <EventRecordID>13617</EventRecordID> <Correlation /> <Execution ProcessID="0" ThreadID="0" /> <Channel>Application</Channel> <Computer>tosh</Computer> <Security /> </System> <EventData> <Data> </Data> <Data>0</Data> <Data>APPCRASH</Data> <Data>Not available</Data> <Data>0</Data> <Data>firefox.exe</Data> <Data>84.0.0.7628</Data> <Data>5fb6e10b</Data> <Data>StackHash_72a0</Data> <Data>0.0.0.0</Data> <Data>00000000</Data> <Data>c000041d</Data> <Data>PCH_84_FROM_unknown+0x0000000000000000</Data> <Data> </Data> <Data> </Data> <Data> </Data> <Data>\\?\C:\ProgramData\Microsoft\Windows\WER\ReportQueue\AppCrash_firefox.exe_726c637c55114d11c6ebcea25a332f6ac2d0cee3_55a7fae7_02334b5f-37a7-4852-83a4-05b597061c67</Data> <Data> </Data> <Data>0</Data> <Data>109734d1-23a5-47d8-ba21-766313ece4fc</Data> <Data>4</Data> <Data> </Data> <Data>0</Data> </EventData> </Event> '''sixth event log entry after trying to start the app''' Log Name: Application Source: Windows Error Reporting Date: 20/11/2020 17:23:13 Event ID: 1001 Task Category: None Level: Information Keywords: Classic User: N/A Computer: tosh Description: Fault bucket 2110652166693828385, type 4 Event Name: APPCRASH Response: Not available Cab Id: 0 Problem signature: P1: firefox.exe P2: 84.0.0.7628 P3: 5fb6e10b P4: StackHash_72a0 P5: 0.0.0.0 P6: 00000000 P7: c000041d P8: PCH_84_FROM_unknown+0x0000000000000000 P9: P10: Attached files: \\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WERE503.tmp.WERInternalMetadata.xml These files may be available here: \\?\C:\ProgramData\Microsoft\Windows\WER\ReportArchive\AppCrash_firefox.exe_726c637c55114d11c6ebcea25a332f6ac2d0cee3_55a7fae7_02334b5f-37a7-4852-83a4-05b597061c67 Analysis symbol: Rechecking for solution: 0 Report Id: 109734d1-23a5-47d8-ba21-766313ece4fc Report Status: 268435456 Hashed bucket: 86d39970f0e48ca31d4a8af68031b721 Cab Guid: 0 Event Xml: <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"> <System> <Provider Name="Windows Error Reporting" /> <EventID Qualifiers="0">1001</EventID> <Version>0</Version> <Level>4</Level> <Task>0</Task> <Opcode>0</Opcode> <Keywords>0x80000000000000</Keywords> <TimeCreated SystemTime="2020-11-20T17:23:13.1676745Z" /> <EventRecordID>13618</EventRecordID> <Correlation /> <Execution ProcessID="0" ThreadID="0" /> <Channel>Application</Channel> <Computer>tosh</Computer> <Security /> </System> <EventData> <Data>2110652166693828385</Data> <Data>4</Data> <Data>APPCRASH</Data> <Data>Not available</Data> <Data>0</Data> <Data>firefox.exe</Data> <Data>84.0.0.7628</Data> <Data>5fb6e10b</Data> <Data>StackHash_72a0</Data> <Data>0.0.0.0</Data> <Data>00000000</Data> <Data>c000041d</Data> <Data>PCH_84_FROM_unknown+0x0000000000000000</Data> <Data> </Data> <Data> </Data> <Data> \\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WERE503.tmp.WERInternalMetadata.xml</Data> <Data>\\?\C:\ProgramData\Microsoft\Windows\WER\ReportArchive\AppCrash_firefox.exe_726c637c55114d11c6ebcea25a332f6ac2d0cee3_55a7fae7_02334b5f-37a7-4852-83a4-05b597061c67</Data> <Data> </Data> <Data>0</Data> <Data>109734d1-23a5-47d8-ba21-766313ece4fc</Data> <Data>268435456</Data> <Data>86d39970f0e48ca31d4a8af68031b721</Data> <Data>0</Data> </EventData> </Event>

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fishbite
fishbite Umnikazi wombuzo
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apologies:

"The only reference I can find to it starting is within task manager " should have read 'The only reference I can find to it starting is within even viewer'