About this Add-on
You can also choose to have it open in a new window instead of a tab.
Please set it in the options page. In the options page,
you can also specify the language of the source and target texts.
#### How to open the options page
Click the menu button and click Add-ons, or select Tools > Add-ons from the menu bar.
Click the three-dot button on "DeepL selected text" and select Options, or click "DeepL selected text" and click Options.
Notes: Depending on the version of Thunderbird, the "Translate with DeepL" item may not appear in the context menu after installing this extension. In that case, please restart Thunderbird once.