Already using it. I am impressed with the updated supported on the developer tools, although Chrome DevTools still wins in tooling.
Any particular feature you would like, that is missing?
- why can't I drag and drop DOM elements in the inspector?
- Chrome's autocomplete seems smarter. If I go to edit a style and I type `li` Chrome gives me line-height, FF gives me lighting-color?
- I prefer the color highlight when you hover over DOM elements in the inspector, I can see the box model in Chrome but just a dotted outline in FF.
FF's tools do seem to get better and more robust with each update though.