Firefox errors after upgrade to latest version 60

Solution Verified - Updated -


  • When using a shared .mozilla folder between 2 systems, after upgrading one system to Mozilla Firefox 60 then running Mozilla Firefox 52 on another system, user gets errors about langpack. This prevents the user from upgrading Mozilla Firefox 52.


  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Mozilla Firefox 60 & 52

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