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Keeps crashing on launch

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  • Last reply by cor-el

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Whenever I try to launch Firefox on my windows 11 pc it always crashes even when I true the official fixes and install it through different means it always crashes on startup

Whenever I try to launch Firefox on my windows 11 pc it always crashes even when I true the official fixes and install it through different means it always crashes on startup

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Did you recently uninstall an application that was using Visual C+ runtime components?

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.

See "Visual Studio 2015, 2017, 2019, and 2022":

You may also have to install the Visual Studio 2013 Redistributable Package. You need to reboot the computer.


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

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