New
#341
The Opendownload addon has been updated for compatibility with FF50 on
Meet the OpenDownload2 Developer :: Add-ons for Firefox
This adds a "Run" button to the "Save File As" dialog, similar to Opera and the Internet Explorer. When you press that button, the particular file will be saved to your temporary folder and opened with your default application or - in case of executable files - automatically executed.
Note there was comment about this being disabled as using this may not allow AV's to properly check the file downloaded.