If you using Chrome, one way to hide snow is go to Devtools (Ctrl+Shift+I or F12). Right click (or click on the three horizontal dots) in <body> and select Edit as HTML. Select all from first <span> to 65th flakes </span> and delete it with backspace. Close Devtools and it's done. Do this every time you visit another page in MFGG or refreshing current page.