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Latest Windows update (KB2993651) prevents Firefox 31 from running but Firefox 21 works

  • 4 cavab
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  • Last reply by FredMcD

pkinder
pkinder
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After installing the latest Windows 7 update (KB2993651), Firefox 31 would no longer work. Kept getting Error Message "The application was unable to start correctly (0xc0000022)".

The only way to get Firefox to work was to uninstall Firefox 31 and install an earlier version (Firefox 21). Uninstalling Firefox 31 and then re-installing it did not work.

After installing the latest Windows 7 update (KB2993651), Firefox 31 would no longer work. Kept getting Error Message "The application was unable to start correctly (0xc0000022)". The only way to get Firefox to work was to uninstall Firefox 31 and install an earlier version (Firefox 21). Uninstalling Firefox 31 and then re-installing it did not work.

All Replies (4)

FredMcD
FredMcD
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Start Firefox in Safe Mode {web link}

Poke around safe web sites. Are there any problems?

cor-el
cor-el
  • Moderator
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See:

pkinder
pkinder Question owner
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not sure how to start Firefox in safe mode if I can't start Firefox at all with version 31 and the latest Windows update

FredMcD
FredMcD
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Start Firefox in Safe Mode {web link}

The above is marked as a web link. It would show you a help article. Basically, it says;

To start Firefox in Safe Mode; Hold down the Shift key (On Mac the Options key), then call the program.