Unable to open files because an unknown error occurred.
Firefox 72.0b3 (32-bit)
Ever since (I believe) Firefox 71 or 72, downloads with an application associated have been failing with this message in the Downloads window:
C:\Users\User\Downloads\Ant Videos\white_smith.zip could not be opened, because an unknown error occurred. Try saving to disk first and then opening the file.
This happens whenever I download OR try to open files that will be automatically opened by helper application e.g. Windows Explorer, Winrar.
- Shockwave Flash 32.0 r0
- Useragent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:71.0) Gecko/20100101 Firefox/71.0