how to add all receivers and senders (email addresses )contacts to my favorites or to address book?
i need to add all the email addresses in my inbox and sent messages to my address book is it possible . so i can save the address book and if i need to sign in from a different device all my contacts or email address are saved and available
Opaite Mbohovái (3)
The Email Address Crawler add-on will collect email addresses from messages.
https://freeshell.de/~kaosmos/index-en.html#eac
To share an address book between different devices, you need to either carry it about with you, or place it "in the cloud".
I use Google Contacts for convenience and the ability to co-operate with Android devices. You'll need the gContactSync add-on to connect Thunderbird's Address Book to the Google Contacts address book. .
If you want to sync with other installations of Thunderbird, then there are addons that let you upload and download address book files. I use one of these with DropBox. It also lets you use a folder in an IMAP connected account, or your own http or ftp server.
https://www.ggbs.de/extensions/AddressbooksSynchronizer.html
ok i downloaded the first link you said what am i supposed to do next