Introducing RunSet™ by Mozilla Foundation: an installation customizer for Mozilla suite of software. Just visit mozilla.org/runset, click on what pieces of software you want, and a custom installer is generated just for you. You can even embed your profile picture to the installer to share it with your friends and family. Fully customizable, fully free.
RunSet™: Install everything everywhere all at once.
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It's this one. https://bugzilla.mozilla.org/show_bug.cgi?id=505521