Important Notice: We're experiencing email notification issues. If you've posted a question in the community forums recently, please check your profile manually for responses while we're working to fix this.

Search Support

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.

Learn More

Error: Plaform version '91.6.0' is not compatible with miniVersion>=91.5.0 maxVersion<=91.5.0

  • 2 replies
  • 1 has this problem
  • 16 views
  • Last reply by robert.cox2

more options

Thunderbird will not start, seemingly after a Windows Update, and displays the message Error: Plaform version '91.6.0' is not compatible with miniVersion>=91.5.0 maxVersion<=91.5.0

Any replies to bob.cox@bobcox.me.uk because I cannot access the email account used for Mozilla

Thunderbird will not start, seemingly after a Windows Update, and displays the message Error: Plaform version '91.6.0' is not compatible with miniVersion>=91.5.0 maxVersion<=91.5.0 Any replies to bob.cox@bobcox.me.uk because I cannot access the email account used for Mozilla
Attached screenshots

Chosen solution

Download the full installer from https://www.thunderbird.net/ and run it.

Read this answer in context 👍 0

All Replies (2)

more options

Chosen Solution

Download the full installer from https://www.thunderbird.net/ and run it.

more options

Hi, That is what I did in the end, but backed up my profiles before carrying out the operation, which proved unecessary because it kept the old profiles.

I did not pick up your email, because Thunderbird was not working,

Thanks anyway

Bob Cox