Hello,
Did your Thunderbird download a duplicate copy of your emails?
https://addons.mozilla.org/en-us/thunderbird/addon/remove-duplicate-messages/
After downloading the install file:
Go to Tools -> Addons and then use the Gear icon to select Install add-on from File.
Did your Thunderbird download a duplicate copy of your emails?
- Maybe your email service provider had to restore your mailbox?
- Maybe your ISP did a server migration?
- Maybe a web site went crazy and sent you lots of emails?
https://addons.mozilla.org/en-us/thunderbird/addon/remove-duplicate-messages/
After downloading the install file:
Go to Tools -> Addons and then use the Gear icon to select Install add-on from File.
