UnsafeScripts attempts to re-activate user customizations in the JS code editor; a safety limitation which power users may find annoying.
It is possible for custom JS to break or exploit the editor with this script, unless bypassed. Only use this script for a reason, like if you want AntiUnicruft or MobileEditor to work fully.
Note that this script loads site scripts as well as user scripts.
You can configure the script by placing the window.unsafeScriptsConfig object above your import. Here's the default configuration: