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Firefox keeps on closing when i open it

  • 5 replies
  • 1 has this problem
  • 2 views
  • Last reply by FredMcD

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whenever I open Firefox it closes immediately this happened with opera As well there is no crash report or anything like that it just pops up for a micro second and then disappears if I'm lucky I get to see a window or tab pop up . its not my computer either as my friend has the same one and opera and Firefox work fine perhaps it could be windows 11 but even on my old windows 10 it would do the same thing

whenever I open Firefox it closes immediately this happened with opera As well there is no crash report or anything like that it just pops up for a micro second and then disappears if I'm lucky I get to see a window or tab pop up . its not my computer either as my friend has the same one and opera and Firefox work fine perhaps it could be windows 11 but even on my old windows 10 it would do the same thing

All Replies (5)

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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.

See "Visual Studio 2015, 2017 and 2019":

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

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cor-el said

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 and 2019": You may also have to install the Visual Studio 2013 Redistributable Package. You need to reboot the computer.

would i need to do this as its a new computer or should i still check

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It doesn't hurt to check this as this are essential Windows components used by a lot of programs. Firefox doesn't include these components, but relies on that they are installed.

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danielshuckburgh said

cor-el said

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 and 2019": You may also have to install the Visual Studio 2013 Redistributable Package. You need to reboot the computer.

would i need to do this as its a new computer or should i still check

it didnt fix it although it seemed to be open half a second instead of 0.01 milisecond

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Remember that 'new' computers were sitting on the shelf for who knows how long.


Some problems occur when your Internet security program was set to trust the previous version of Firefox, but no longer recognizes your updated version as trusted. Now how to fix the problem: To allow Firefox to connect to the Internet again;

  • Make sure your Internet security software is up-to-date (i.e. you are running the latest version).
  • Remove Firefox from your program's list of trusted or recognized programs. For detailed instructions, see

Configure firewalls so that Firefox can access the Internet. {web link}