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.

ابحث في الدعم

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

Mail opens in "reply" mode

more options

Incoming mail is suddenly opening in edit mode. An error message says "A unique identity matching the from address was not found. ... " What has happened?

Incoming mail is suddenly opening in edit mode. An error message says "A unique identity matching the from address was not found. ... " What has happened?
Attached screenshots

All Replies (3)

more options

Hello there dwessel. We have read your message . We try to help you.


Please see this post and the referenced bug report:

https://support.mozilla.org/en-US/questions/1245998




Greetings Firefox volunteer.

more options

The archived bug report 1245998 from three years ago (version 60) was a somewhat similar problem and the workarounds were helpful but don't solve the problem we have now with the new version 91.10.0. I personally have never had this problem in 10-plus years, so it seems to have been a bug introduced with the most recent version. For others who come across the problem, here are two workarounds in the meantime. 1: Ctrl-O opens the email normally (in read mode). 2: Usually I just move the email into the folder where I'm going to be filing it anyway, and read it there. Emails seem to be opening properly everywhere EXCEPT the Inbox.

more options

Thank you for using Thunderbird Software.




Greetings Firefox volunteer.