Source Link : https://mykodiaddons.com/install-popcorn-time-kodi-firestick/
Launch Kodi
Press SYSTEM then File Manager
Press Add Source
Press None
Type http://dimitrology.com/repo and Press Done
Enter a name for media Source, type dimitrology & Press OK
Go back to Home Screen
Press SYSTEM
Press Add-Ons
Press Install from zip file
Press dimitrology
Press kodipopcorntime.repository-1.0.0.zip
Wait for Add-on enabled notification
Press Install from Repository
Select Markop159 Repository
Press Video add-ons
Press Kodi Popcorn Time
Press Install
Wait until you see Popcorn Time Add-on installed message
Popcorn Time is now installed and ready to use.