@tcandela Having this same issue for the last week. I have 155.79 GB of 499.96 available. Jamf support is having me upload from Jamf Pro instead. As of this morning Jamf Pro is logging me out and operating very wonky, but thats a separate issue it seems. Jamf Pro did upload a Firefox .PKG but the install failed.
Has you experienced the upload issue with Jamf admin recently?