Mozilla actually manually reviews the extensions and updates to the extensions, and would reject obfuscated code. See for example: https://blog.mozilla.org/add

Mozilla actually manually reviews the extensions and updates to the extensions, and would reject obfuscated code. See for example: https://blog.mozilla.org/addons/2016/08/19/a-simpler-add-on-review-process https://blog.mozilla.org/addons/2016/08/19/a-simpler-add-on-... https://blog.mozilla.org/addons/2010/02/15/the-add-on-review-process-and-you https://blog.mozilla.org/addons/2010/02/15/the-add-on-review...