This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Cari Bantuan

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Pelajari Lebih Lanjut

Error after Update of 19 DEc 2021

  • 2 balas
  • 1 memiliki masalah ini
  • 12 kunjungan
  • Balasan terakhir oleh Wayne Mery

more options

I had an automatic update for Thunderbird on 20 Dec. I cannot open the program now. I get an

          Error; Platform version 9.4.0 not compatible with 91.4.0

What can I do? The troubleshooter says incompatible. Many thanks Frederica.bull@btinternet.com

I had an automatic update for Thunderbird on 20 Dec. I cannot open the program now. I get an Error; Platform version 9.4.0 not compatible with 91.4.0 What can I do? The troubleshooter says incompatible. Many thanks Frederica.bull@btinternet.com

Semua Balasan (2)

more options

Can you provide the full+exact error, maybe with filename and line number, or a screenshot of the error?

Diperbarui oleh Wayne Mery pada

more options

Also, try reinstalling by downloading from https://www.thunderbird.net/