version 2020.11.10

switch video extractor backend from a thread for a responsive gui

version 2020.10.11

Added option to download thumbnail with video file, issue firedm#169

version 2020.9.20

version 2020.8.13

version 2020.6.27

version 2020.6.15

version 2020.5.10

revert version until fix a critical bug fix