This article applies to Firefox Developer Edition. See Get community support for help with other Firefox browsers.
Firefox Developer Edition integrates all the developer tools you'll need into one package. It is the only browser dedicated to developers.
How do I switch between the Developer Edition and standard themes?
Click the menu button 
, then and click to switch between themes.
For more details, see reverting themes on MDN.
Recover lost bookmarks
Firefox Developer Edition will create a new profile if you run it at the same time as Firefox. To keep your bookmarks on both versions, see Recover lost bookmarks on Firefox Developer Edition
How do I learn more about Firefox Developer Edition?
The Mozilla Developer Network is the best place to learn more about Developer Edition. See MDN Developer Edition documentation for more details.
