Recover lost bookmarks on Firefox Developer Edition
When you launch Firefox Developer Edition for the first time, it creates a new profile without your existing bookmarks, site preferences or browsing history. Learn how to recover your bookmarks and keep your preferences up to date on both Developer Edition and standard versions of the browser.
Option 1: Set up Firefox Sync on both editions
Keep your bookmarks in sync by setting up Firefox Sync on both editions of the browser.
Option 2: Turn off the option to use separate profiles
In the Location bar, type about:preferences and press EnterReturn to access the about:preferences page. Remove the check mark next to Allow Firefox Developer Edition and Firefox to run at the same time.