Xossip common js elements
This script should not be not be installed directly. It is a library for other scripts to include with the meta directive // @require https://sleazyfork.org/scripts/30498-xpcommon/code/XPCommon.js?version=208842
// @require https://sleazyfork.org/scripts/30498-xpcommon/code/XPCommon.js?version=208842