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Firefox download fails if interrupted


My computer is far from my router, so it disconnects frequently for short periods of time. When downloading files, if I notice that I have disconnected before Firefox does, I pause the download, and continue it when I reconnect. However, if I do not, it gives the message: "", and am forced to redo the download from the beginning. A similar issue was addressed in this ticket (https://support.mozilla.org/questions/913829). I will try this solution next time the error occurs, but I believe that firefox should integrate a retry mechanism (or at least, button) at this stage for the user to select once the internet connection has been re-established, to continue downloading from the point reached before disconnection (as pausing before firefox gives this error does not interrupt the download).

Modified by cor-el

Additional System Details

Installed Plug-ins

  • Shockwave Flash 11.5 r502
  • Pando Web Plugin
  • Next Generation Java Plug-in 10.9.2 for Mozilla browsers
  • RealJukebox Netscape Plugin
  • RealNetworks(tm) RealPlayer Chrome Background Extension Plug-In
  • RealPlayer(tm) HTML5VideoShim Plug-In
  • RealPlayer(tm) LiveConnect-Enabled Plug-In
  • RealPlayer Download Plugin
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • iTunes Detector Plug-in
  • VLC media player Web Plugin 2.0.2
  • 5.1.10411.0


  • User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:15.0) Gecko/20100101 Firefox/15.0.1

More Information

Tyler Downer
  • Top 25 Contributor
  • Administrator
  • Moderator
1166 solutions 6653 answers

Your first step should be to update Firefox, Update Firefox to the latest version. There are known bugs in the older versions of Firefox that are fixed in the most recent version.

You may be able to find an add-on to improve the download process at addons.mozilla.org