Chrome DevTools is far more feature-complete than any of the alternatives. I consider it the gold standard for developer tools.

Every release they publish a blog post with new DevTools features, here's the latest one from January 2018 [0]. If you scroll to the bottom it has a section titled "Discover other DevTools features", which provides a long list of features they've been adding over time.

Their console autocomplete is just amazing. If you type `document.querySelectorAll('body')`, it shows you a preview of the result without even having to hit enter. Then if you type a period it shows you that the constructor is a NodeList, as well as its methods. They go over many of these features in their May 2018 [1] blog post. Keyboard navigation has continually been improving as well.

There's no huge killer feature, it's just very solid all-around. Over the years it has remained miles ahead of the competition. With that being said, I still use Firefox as my daily-driver, and I'm perfectly happy with their DevTools for many tasks. And they're actually superior for certain tasks, for example, when working with `display: grid` and `display: flex` [2]. I usually switch over to Chromium while I'm actively developing or debugging something, but I don't think there's any need to limit yourself to just one tool.

[0] https://developers.google.com/web/updates/2019/01/devtools

[1] https://developers.google.com/web/updates/2018/05/devtools

[2] https://developer.mozilla.org/en-US/docs/Tools/Page_Inspecto...