Disable What's New? feature
Mozilla's onboarding/introduction UX for new features.
Relevant tickets:
- https://bugzilla.mozilla.org/show_bug.cgi?id=1561307
- https://bugzilla.mozilla.org/show_bug.cgi?id=1563319
Disable via:
- browser.messaging-system.whatsNewPanel.enabled = false
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information