Features

• Adapt UI elements and “about:” pages to small screen sizes (when opened on small screen)

• Moves the UI chrome (address- and tab-bar) to the bottom

• Enable mobile gestures

• Show one tab to show the page title and add a tab counter

• Use the native file-picker through xdg-portals

• Privacy tweaks:

  • Disable search suggestions

  • Disable Firefox studies

  • Disable Telemetry

  • Set DuckDuckGo as default search engine, remove other search engines except for Wikipedia (only works in Firefox ESR, limitation of policies.json)

  • Install uBlock origin by default (why?)

• Uncluttering:

  • Disable built-in advertisements (e.g. hardcoded links for certain social media sites on the start page)

  • Disable “User Messaging” about new features etc.

  • Hide protections menu (the shield icon) in urlbar by default

  • Hide https in urlbar by default

There’s a screenshot thread of the 3.0.0_rc1 release.