What does Facebook Messenger do?

Related questions

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2. What is ignore on messenger?
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4. Can anyone else see my messages on messenger?
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Tags

1. #facebook
2. #group
3. #mobile
4. #sharing
5. #contacts
6. #recordings
7. #messaging
8. #videos
9. #chats
10. #phone
11. #instant
12. #messenger
13. #audio
14. #download
15. #communicate
16. #friends
17. #photos
18. #which