Here’s a wonderful post by Nicolas Chevobbe on what the Firefox DevTools team was up to last year. What strikes me is how many improvements they shipped — from big visual design improvements to tiny usability fixes that help us make sure our code works as we expect it to in the console.
There are lots of interesting hints here about the future of Firefox DevTools, too. For example, tighter integrations with MDN and, as Nicolas mentions in that post, tools to make it feel like a playground where you can improve your design, rather just fixing things. Anyway, I already feel that Firefox DevTools has the best features for typography of any browser (make sure to check out the “Fonts” tab in the Inspector). I can’t wait to see what happens next!