LanguageTool correttore grammaticale e ortografico

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di Guido3 il Gen. 20, 2023 · link permanente

Does work well in Firefox but not in Thunderbird. Extension is installed. I see a LanguageTool-Button in every E-Mail window next to the Attachments-Button, where I can access the Settings for LanguageTool. But it does not mark any errors in the text, does nothing

Thunderbird 102.7.0 on Windows 10
LanguageTool 6.0.5

@Christopher Blum: I've tried that already. I have just one other add-on (Provider for Google Calendar) and deactivation does not solve the problem. You can find a screenshot here:
postimg.cc/2bzPDTDw