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Об этом дополнении
The button is meant for folder messages only. It is convenient when there are many messages that a user would like to delete at once. What it will not do is select all text within an email.
Contribution by John Bieling
https://addons.thunderbird.net/en-US/thunderbird/user/jobisoft/
Contribution by John Bieling
https://addons.thunderbird.net/en-US/thunderbird/user/jobisoft/
