Network request override, early hints headers, font metadata and more
In Firefox 137, you can directly set network response overrides in Firefox DevTools. Learn more about this new feature.
lossless JSON parsing debugging, persisting Network Raw response setting, better Inspector autocomplete and more!
CHIPS cookies, more requests and new console helper
Debugger fixes and accessibility improvements
Performance and stability are on the menu for the last Firefox version of 2024
Bug fixes for enhanced stability
Supercharging CSS variables debugging and many more improvements to the Inspector
Important Debugger fixes and quality of life Inspector improvements
Massive performance improvements, @starting-style support and accessibility fixes