Open Thunderbird
Click Tools if you do not see if on the top menu press \"Alt\" key
Click Add-ons
Click Extentions
type in the box that says \"Seach all add-ons\" tzpush
![\"\"](\"https://secure.tkfast.com/files/faqs/tzsettings_install_4.PNG\")
Press the seach button beside it
or you can download it from https://addons.mozilla.org/en-US/thunderbird/addon/tzpush/
![\"\"](\"https://secure.tkfast.com/files/faqs/tzsettings_install_3.PNG\")
Click Options
![\"\"](\"https://secure.tkfast.com/files/faqs/tzsettings1.PNG\")
Server: https://webmail.tkhost.com/rpc.php
Check the box Use https://
Username: your email address
Password: your email password
Press Ok
![\"\"](\"https://secure.tkfast.com/files/faqs/tzsettings2.PNG\")
Now you can click on the tools menu
TZ-Push
tz-sync
![\"\"](\"https://secure.tkfast.com/files/faqs/tzsettings_sync.PNG\")
And it will sync.