Real Firefox power users should know that if they want to hack a website, they can 1) write an user script and load it into Violentmonkey, or CSS and load into

Real Firefox power users should know that if they want to hack a website, they can 1) write an user script and load it into Violentmonkey, or CSS and load into Stylus. You can easily distribute some Javascript/CSS text via email or IM. 2) If user script or CSS not enough, you can write an addon, create a free Firefox account, submit the addon to your own account at https://addons.mozilla.org/en-US/developers/addon/submit/agreement https://addons.mozilla.org/en-US/developers/addon/submit/agr... and download the signed addon XPI file. Then you can distribute the file in whatever way you want, provided you are not violating any license agreement.