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I upgraded to 9.01 of Firefox and now get an error 'MORZCRT19.dll

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  • Balasan terakhir oleh cor-el

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I upgraded to 9.01 of Firefox and now get an error 'MORZCRT19.dll" -- I downloaded 'MORZCRT19.dll' to the Firefox directory, same problem. I have reinstalled Firefox, same problem. I have removed Firefox and re-downloaded and installed, same problem.

I upgraded to 9.01 of Firefox and now get an error 'MORZCRT19.dll" -- I downloaded 'MORZCRT19.dll' to the Firefox directory, same problem. I have reinstalled Firefox, same problem. I have removed Firefox and re-downloaded and installed, same problem.

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Which security software (firewall, anti-virus) do you have?

Do you have security software like ZoneAlarm or Avast that has virtualization or sandbox features?
In that case you need to disable that feature and do a clean install of the latest Firefox update.


Download a fresh Firefox copy and save the file to the desktop.

Uninstall your current Firefox version, if possible.

  • Do NOT remove personal data when you uninstall the current version or you lose your bookmarks and other data in the profile folder.

Remove the Firefox program folder before installing that newly downloaded copy of the Firefox installer.

Your bookmarks and other profile data are stored elsewhere in the Firefox Profile Folder and won't be affected by a reinstall, but make sure that you do not select to remove personal data if you uninstall Firefox.