Only your download history is purged when you exist private browsing mode and the files should still be on the hard drive when you originally saved them.

for next time it shouldn't happen fix a proper location where all downloaded files will be saved.

try this link for this https://support.mozilla.org/en-US/kb/startup-home-page-tabs-download-settings

Learn about what Private Browsing does: https://support.mozilla.org/en-US/kb/private-browsing-use-firefox-without-history

And what Private Browsing doesn't save: https://support.mozilla.org/en-US/kb/private-browsing-use-firefox-without-history#w_what-does-private-browsing-not-save

Do you recall whether Firefox asked you where you wanted to save the download, or whether it saved it automatically?

If Firefox saved it automatically, check the setting on the Options page that Fred mentioned earlier.

If you selected the location, it's a little trickier. Where would you normally choose to save a movie? In Windows' Downloads folder? In the Videos folder?

If you are using an add-on for downloading, check whether the add-on uses a standard location.

Hi Rahul,

Thanks for your reply

I checked my downloads but no luck,and also i tried to download the movie in private browsing again . when look into the folder where private browsing files is temp file ,when i checked there ,no luck .

Hi jscher2000,

Thanks for your reply

i checked in all folders and drives ,but no luck. It didn't ask me to save but it open the file automatically when download was complete.I just closed the file and i restart the system then i search for my files ,but there is nosaved files in my system.

manideepika said

It didn't ask me to save but it open the file automatically when download was complete.I just closed the file and i restart the system then i search for my files ,but there is nosaved files in my system.

If you use Open instead of Save, Firefox typically uses the Windows "temp" folder under your user profile. For example:

C:\Users\username\AppData\Local\Temp

AppData is a hidden folder, so you might need: http://windows.microsoft.com/en-us/windows/show-hidden-files

Unlike PDFs or other documents, media files may not have easily recognizable names. You can sort by the date column to see whether that helps, or the size.

As the name implies, the Temp folder is not a reliable place to store files and anything in there could cleared at any time, so it could be gone by now.