Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Avatar for Username

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
Lolu chungechunge lwabekwa kunqolobane. Uyacelwa ubuze umbuzo omusha uma udinga usizo.
Okugcinwe kunqolobane

Editing subject manually

I-Thunderbird Okunye
sfhowes replied 5 iminyaka edlule
hornetster
hornetster

Can I manually edit the subject of an email, by using a text editor to open the relevant file? (Yes, I realise the consequences, if you are not careful/studious/do the right thing...) And obviously, while Thunderbird is closed. ie, will I break the file by opening/editing outside of Thunderbird? Thanks.

Can I manually edit the subject of an email, by using a text editor to open the relevant file? (Yes, I realise the consequences, if you are not careful/studious/do the right thing...) And obviously, while Thunderbird is closed. ie, will I break the file by opening/editing outside of Thunderbird? Thanks.

All Replies (1)

sfhowes
sfhowes

Try this add-on: https://addons.thunderbird.net/en-US/thunderbird/addon/edit-email-subject/

https://support.mozilla.org/en-US/kb/installing-addon-thunderbird