Script error:
ReferenceError
columnNumber: 7
fileName: "resource://gre/modules/ExtensionContent.jsm"
lineNumber: 2193
message: "$ is not defined"
stack: "injectScript@user-script:https%3A//github.com/Charcoal-SE//Feedback%20Instantly%2C%20Rapidly%2C%20Effortlessly:2193:7\ninjectExternalScripts@user-script:https%3A//github.com/Charcoal-SE//Feedback%20Instantly%2C%20Rapidly%2C%20Effortlessly:2159:5\nuserScript/</<@user-script:https%3A//github.com/Charcoal-SE//Feedback%20Instantly%2C%20Rapidly%2C%20Effortlessly:469:5\nuserScript/<@user-script:https%3A//github.com/Charcoal-SE//Feedback%20Instan…

def blacklist_factory(wb=[], nwb=[])
    processed_keywords = []

    processed_keywords.extend("(\b{}\b)".format(keyword) for keyword in wb)
    processed_keywords.extend("({})".format(keyword) for keyword in nwb)

    pattern = regex.compile(r'(?is){}'.format("|".join(processed_keywords)))

    def f(s, *args):
        why = []

        for match in regex.finditer(pattern, s):
            start, end = match.span()
            why.append("Position {}-{}: {} (pattern {})".format(start, end, match, processed_keywords[match.lastindex - 1])