Error while copying image by dragging from Firefox or Chrome to desktop

Hi experts,
I received the error message – “The Specified location is not supported”, whenever I tried to copy an image by dragging it from the Firefox or Chrome to the desktop.
Code: The specified location is not supported.

At present, my machine is running with Ubuntu and XFCE. So far, I know that saving image file to the desktop is a regular phenomenon of Windows as well as in Linux. I do not prefer to save image by right clicking on it and waiting for the option.
Please help me to solve the issue.
If you need any other information, please let me know.
Thanks a lot.
