What are extensions for Safari?

Related questions

1. How do I see extensions in Safari?
2. Where are the Safari Extensions?
3. How do I remove Safe Finder from Safari on Mac?
4. Why do some websites say not secure in Safari?
5. Where is the extensions button on safari?
6. Can you uninstall Safari?
7. Why do websites say not secure?
8. What is the best Adblocker for Safari?
9. Should I use Safari?
10. How do I get rid of unwanted extensions?

Tags

1. #change
2. #headlines
3. #webpages
4. #explore
5. #appearance
6. #functionality
7. #helpful
8. #about
9. #favorite
10. #display
11. #information
12. #safari
13. #extensions
14. #webpage
15. #services