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: Turn off the option to use separate profiles= Open the '''about:preferences''' page and remove the check mark from ''Allow Firefox Developer Edition and Firefox to run at the same time''. ;[[Image:dev edition same profile]] =Option 2: Set up Firefox Sync on both editions= If you prefer to run separate profiles for Firefox and Firefox Developer Edition, keep your bookmarks in sync by setting up [[How do I set up Firefox Sync? | Firefox Sync]] on both editions. {note}See [https://developer.mozilla.org/Firefox/Developer_Edition Firefox Developer edition on MDN] for more information.{/note}

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: Turn off the option to use separate profiles

Open the about:preferences page and remove the check mark from Allow Firefox Developer Edition and Firefox to run at the same time.

Option 2: Set up Firefox Sync on both editions

If you prefer to run separate profiles for Firefox and Firefox Developer Edition, keep your bookmarks in sync by setting up Firefox Sync on both editions.