Amen. FF’s dev tools are like Windows 95 to Chrome’s Windows 7.

Yeah, from where I sit Chrome is the absolute first target, regardless of how many nails are being nailed into its coffin.

There is some thought that if Apple opens up iOS a bit Chrome could make more headway there as well.

Numbers I've heard are Chrome - 60%, Firefox < 5%.

Webdev here, chrome was a breath of fresh air in the IE era, there was nothing close for dev tools. But after Firefox rewrote their rendering engine I switched to it as my personal browser, that plus the UI rewrite plus the immensely better privacy features made it more and more comfortable for personal browsing. Then I noticed the dev tools at some point had also been considerably upgraded to the point that for most work it pretty much has feature parity - so here's my anecdote, the tables have turned and I develop in Firefox, then test in chrome.

One of the main things i've noticed is a very jagged divide in performance. Firefox's renderer is generally faster and has fewer bugs, but with some APIs like canvas it's a mixed bag, some things are very slow due to significant implementation differences such as fillText. Even for the JS engine it's not so clear cut, everyone thinks of V8 as the king, but there are some cases that chromes optimizer is extremely sensitive to such as global variables.

The same web devs that put all the tracking scripts into their websites so that more time and data is used for tracking and ads than for content. And then I got a website where I can't click the link I wanted to click because in that moment the link jumps down to make room for the ad. I thought it was all about UX not DX.