Hi Jeffrey, Firefox appears to import a JavaScript module named '''log4js''', but despite the name similarity, from what I read, it does not have the problematic features of the log4j Java program. Here's what I found: * URL required in Firefox source: https://registry.npmjs''.''org/log4js/-/log4js-6.3.0''.''tgz * Main page for package: https://www.npmjs.com/package/log4js * Security thread on Github repository: https://github.com/log4js-node/log4js-node/issues/1105 Let me know if you discover anything concerning.