Greasy Fork is available in English.
Small script for a request http://greasyfork.icu/uk/forum/discussion/6631/change-facebook-notification-sound-convert-chrome-extension-to-userscript
当前为
You can find settings option in Greasemonkey's "User Script Commands..." Settings option in User Script Commands...
UI is quite simple, enable, mp3 sound URL, timeout interval. UserScript Settings UI
Small script for a request http://greasyfork.icu/uk/forum/discussion/6631/change-facebook-notification-sound-convert-chrome-extension-to-userscript