Somehow it didn't end up being useful for me, not sure, might be that our app has oceanic amounts of code.

please return "highlight updates" feature

It's solid and does what it says on the tin. But it's a lot slower than the Chrome extension. And the inability to increase the font-size with CMD+ is frustrating. I do a lot of code pairing via screen share. So this would be a very nice to have.

I don't have experience working with react dev tools in older version of FF, but in 57 the extension is pretty slow and laggy compared to Chrome. Especially when working on some larger project.