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Thunderbird wont open - "Couldn't load XPCOM

  • 1 reply
  • 1 has this problem
  • Last reply by david

artsiegel22
artsiegel22
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How to go back to previous version of Thunderbird. I cannot open the current version, so I need a way to go back without accessing the program.

How to go back to previous version of Thunderbird. I cannot open the current version, so I need a way to go back without accessing the program.

All Replies (1)

david
david
  • Top 10 Contributor
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This usually indicates a corrupted install. Try these steps:

  1. do NOT uninstall, as that may delete your message folders
  2. locate the program, either at c:\program files or c:\program files (x86) and delete it
  3. download and install your preferred version. I recommend ver 128, but it's your call.
  4. if you receive a compatibility error, locate the profile and delete a file named compatibility.ini (profile will be at c:\users\<yourid>\appdata\roaming\thunderbird\profiless

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