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Firefox 87 will not load when clicked

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  • 1 manana an'ity olana ity
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  • Valiny farany nomen'i frankiejohn

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Hello, I am trying to get Firefox version 87 to run, been running fine, used FFox for ages, this works under my wife's logon same PC, different profile of course. I have UN-installed, deleted program files + x86 files for FFox, deleted profile.ini, renamed profile.ini, tried safe mode, tried restarting, tried resetting FFox, when I click on the icon literally nothing happens, the task bar flashes for a Milli-second with something but thats it! Help! I do not want to delete my profile if this can be avoided.

Geoff

Hello, I am trying to get Firefox version 87 to run, been running fine, used FFox for ages, this works under my wife's logon same PC, different profile of course. I have UN-installed, deleted program files + x86 files for FFox, deleted profile.ini, renamed profile.ini, tried safe mode, tried restarting, tried resetting FFox, when I click on the icon literally nothing happens, the task bar flashes for a Milli-second with something but thats it! Help! I do not want to delete my profile if this can be avoided. Geoff

All Replies (4)

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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}

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Thanks for this, just tried it, Firefox is already in the list so this did not work. I have even turned off/disabled anti-virus (Windows Defender) which also did nothing. And running latest version.

Novain'i frankiejohn t@

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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":

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Would this be correct though if, as I say, under the exact same PC with a different logon, it all works fine? I have not modified anything, I rarely do.