• possible download succeeded with 0 byte pdf for large file. now fixed.
• in Firefox, no response when clicking 'Download' button after a saveas dialog is canceled. now fixed.
• in Firefox, zip download function does not work. now fixed.
• in Firefox, clicking button to cancel a download which has lasted for more than 30 seconds will leave with uncompleted files not cleaned. now fixed.
• in Firefox, minimum version required is 115 now.