Opens .desktop files in webbrowser. They are created by Cinnamon, when dropping a link from your webbrowser on the desktop. Windows (and often Cinnamon itself) can't open them. Open a .desktop file with this tool and it will open the URL in your default webbrowser.

openDotDesktopFile.py

import sys
import webbrowser

searchFor = "URL"

file = open(sys.argv[1])

for line in file:
    if searchFor in line:
        url = line[4:]
        webbrowser.open(url)
        print(url)

file.close()

Known bug: I don't know which character encoding Python is using, but it has problems parsing files with Cyrillic, Chinese, Greek, Japanese,... characters.