How do I change a filename on-download with javascript?

Question

The script adds a download link for videos (on a specific site). How do I change the filename to something else while downloading?

Example URL:
\"http://websit         


        

Answer 1

You can probably do this with a Chrome userscript, but it cannot be done (yet) with Greasemonkey (Firefox) javascript.

Workaround methods (easiest to hardest):

1. Add the links with Greasemonkey but use the excellent DownThemAll! add-on to download and rename the videos.

2. Download the videos as-is and use a batch file, shell-script, Python program, etc. to rename them.

3. Use Greasemonkey's GM_xmlhttpRequest()Doc function to send the files to your own web application on a server you control.
   This server could be your own PC running XAMPP (or similar).

4. Write your own Firefox add-on, instead of a Greasemonkey script. Add-ons have the required privileges, Greasemonkey does not.