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= In the [[Search your bookmarks, history and tabs with the Awesome Bar|Location bar]], type '''about:preferences''' and press {for win,linux}{key Enter}{/for}{for mac}{key Return}{/for} to access ''about:preferences'' page. Remove the check mark next to ''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, keep your bookmarks in sync by setting up [[How do I set up Firefox Sync? | Firefox Sync]] on both versions. {note}'''For more information on Developer Edition''', see [https://developer.mozilla.org/en-US/Firefox/Developer_Edition Mozilla Developer Network].<!--Please manually change the link to your locale version if available. When a translation isn't available, MDN generates a 404 error, so we have to keep the en-us link by default.-->{/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

In the Location bar, type about:preferences and press EnterReturn to access about:preferences page. Remove the check mark next to 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, keep your bookmarks in sync by setting up Firefox Sync on both versions.