How do I add an extension to FireFox?

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Tags

1. #after
2. #installation
3. #countdown
4. #select
5. #active
6. #would
7. #theme
8. #downloaded
9. #takes
10. #about
11. #install
12. #appear
13. #window
14. #firefox
15. #software
16. #click
17. #first
18. #button
19. #extension
20. #seconds
21. #brief