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Mozilla Firefox crashes immediately upon opening in regular mode as well as Troubleshoot mode. Most recent Crash ID is: bp-9aca92f2-b85b-4cdc-8cd3-4700b0210814.

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  • Last reply by FredMcD

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Crashes immediately upon opening in regular mode and troubleshoot mode. Crash ID: bp-9aca92f2-b85b-4cdc-8cd3-4700b0210814

Crashes immediately upon opening in regular mode and troubleshoot mode. Crash ID: bp-9aca92f2-b85b-4cdc-8cd3-4700b0210814

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Product Firefox Release Channel release Version 91.0 Build ID 20210804193234 (2021-08-04) Buildhub data OS Windows 7 OS Version 6.1.7601 Service Pack 1

Sat, 14 Aug 2021 13:54:37 GMT bp-9aca92f2-b85b-4cdc-8cd3-4700b0210814 Signature: nsINode::Append

Uptime 1 seconds

Crash Reason EXCEPTION_ACCESS_VIOLATION_READ

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You can check for issues caused by a corrupted or incomplete Visual C++ installation that is missing runtime components (Redistributable Packages) required by Firefox, especially VCRUNTIME140_1.dll.

Install both 32-bit and 64-bit "Visual Studio 2015, 2017 and 2019" downloads, (x86: vc_redist.x86.exe and x64: vc_redist.x64.exe) from https://support.microsoft.com/help/2977003/the-latest-supported-visual-c-downloads