How do I change line spacing in Thunderbird?

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Tags

1. #functions
2. #options
3. #shift
4. #switched
5. #composition
6. #quote
7. #enter
8. #processor
9. #paragraph
10. #thunderbird
11. #general
12. #pressing
13. #tools
14. #mention
15. #inserts
16. #behavior
17. #window