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

The subject disappears when I reply to a message

more options

The message subject disappears when I reply to a message so neither I nor the recipients see it, the field is just empty.

This does not happen when I compose a new message, but if I reply to a message I originally sent the subject promptly disappears - so it does not matter if I composed it originally or someone else.

This is very inconvenient, does anyone know what is going on?

The message subject disappears when I reply to a message so neither I nor the recipients see it, the field is just empty. This does not happen when I compose a new message, but if I reply to a message I originally sent the subject promptly disappears - so it does not matter if I composed it originally or someone else. This is very inconvenient, does anyone know what is going on?
Attached screenshots

All Replies (2)

more options

does this happen if you start Thunderbird in safe mode with all add-ons disabled? Hold shift while you start Thunderbird.

more options

I have been using Firebird for a few years but this problem is suddenly happeinng more frequently. yeaterday it happened twice. Grateful for any furthe help.