FlashGot Media Affected by Downloads, Extensions

[therube]

FlashGot Media is Affected by Options | Downloads -> File Extensions => Apply file extension filter to batch downloads too

Options | Downloads -> File Extensions
> jpg -> Add

Ensure that, Apply file extension filter to batch downloads too is enabled.

URL: http://www.youtube.com/watch?v=wUEA5NWlQU0

FlashGot Media.
Either Ctrl+F7 or left-click the FlashGot Media icon or use the context-menu.
(Right-click of the FlashGot Media icon & selecting a particular clip does work.)

Nothing happens.

Should something happen?
Or is it expected that setting [a] File Extensions => Apply file extension filter to batch downloads too affects FlashGot Media?