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how to fix error message #6034.

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error message is Microsoft Visual C++Runtime Library Program c:\(x86)...Mozilla This error message appears every time I start Firefox.

error message is Microsoft Visual C++Runtime Library Program c:\(x86)...Mozilla This error message appears every time I start Firefox.

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Can you start Firefox in Safe Mode by holding down the Shift/Options key?

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).

  • Do NOT click the Reset button on the Safe Mode start window.

Also check for issues caused by plugins.