Download will not go completely through the process. Usually hangs at 1 sec
I was having trouble with words disappearing from my icons and toolbars so I uninstalled firefox. Now I cannot re install a version of firefox. It hangs with 1 sec left in the process.
Alla svar (1)
It is possible that your anti-virus software is corrupting the downloaded files or otherwise interfering with downloading files by Firefox.
Try to disable the real-time (live) scanning of files in your anti-virus software temporarily to see if that makes downloading work.
See "Disable virus scanning in Firefox preferences - Windows"