Version 15.0, first offered to Release channel users on February 12, 2019
This version of Firefox for iOS has several usability and performance improvements.
Improved menu with Library option and access to bookmarks, history, Reading List and downloads
Updated Tab settings with additional options for selecting a New Tab page
Remain in Private Browsing mode at all times. Firefox for iOS now remembers when you toggle Private Browsing mode so that any new tabs you open via the Share extension or clipboard bar will open in the browsing mode you were last in.
Crashes and minor bugs
Drag to reorder tabs. Reorder your tabs by dragging a tab in the tab bar or tab tray.