Firefox Developer Edition 67 -

: A new panel for streamlined debugging of web workers.

: The system for selecting the dedicated default profile was standardized to match other versions of Firefox, moving away from specific profile naming like "dev-edition-default". 2. Performance Enhancements Firefox Developer Edition 67

: Provides higher fidelity for pausing execution at specific locations within a single line of code. : A new panel for streamlined debugging of web workers