Downloading Problem
I am unable to download files using Window 10. Download appears to be working then, when "complete," the label "download failed" appears in the download display. Has anyone encountered this? and what/how did you correct the problem?"
ప్రత్యుత్తరాలన్నీ (1)
I would try a new profile. You can create one with Firefox open or closed.
https://support.mozilla.org/en-US/kb/profile-manager-create-remove-switch-firefox-profiles