Downloads thumbnails from IMVU based on a JSON file
ALL MY SCRIPTS ARE FOR FIREFOX AND MAY NOT WORK WITH CHROME/CHROMIUM BASED BROWSERS
Downloads your thumbnails from your IMVU shop based on a JSON file generated by https://greasyfork.org/en/scripts/513312-imvu-creator-pid-backup-utility-json-numbers (works with any shop but is intended to be used for yours only)
adds a button to open and select your generated json file and download all your thumbnails
