We have firefox as a published app under citrix . User pofiles are roaming. Under users profile path below. There are folders that contain larger amounts of files. 10k + in most cases. The folders are named with an arbitrary number like mpkley8b.default-release dated with current date or past dates. What are these for? why are they created? is there a configuration in the firefox app to clean these up automatically? Any help would be appreciated. E:\Profiles$\xxxxx\xenapp\UPM_Profile\AppData\Local\Mozilla\Firefox\Profiles Thank you, Dave