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After update 39.0 master password is no longer recognized, why?

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neshkonyx
neshkonyx
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I had the same master password for last 6 moths and after firefox was updated on version 39.0 my master password in no longer recognized, and I am unable to access stored passwords. The same thing happened on my work computer. Both computers are running (legal) Windows 7 (x64) professional. What can I do to fix this,

I had the same master password for last 6 moths and after firefox was updated on version 39.0 my master password in no longer recognized, and I am unable to access stored passwords. The same thing happened on my work computer. Both computers are running (legal) Windows 7 (x64) professional. What can I do to fix this,

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cor-el
cor-el
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Did you try to reboot the computer since this happens?

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.

  • Switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance
  • Do NOT click the Reset button on the Safe Mode start window

This can be caused by a problem with the key3.db file.

You can make a backup copy of the current logins.json and key3.db files in the profile folder just to be sure before proceeding.

You can use this button to go to the current Firefox profile folder:

You can try to restore a previous version of the key3.db file and possibly the logins.json file.

  • Right-click: Properties > Previous Versions