My team builds a lot of PWAs, and Firefox simply did not provide good enough diagnostic tools, so we couldn't use it in earnest (even though we really wanted to).
I'm curious what kind of applications your building that require some sort of specialized tool that Firefox dev tools doesn't provide.
The best thing about Firefox is that if there is a dev tools feature that you need, you can easily submit a feature request in the support forums: https://support.mozilla.org/en-US/questions/firefox
Or, if you have the time and energy, you can always build it yourself: https://developer.mozilla.org/en-US/docs/Mozilla/Developer_g...
or direct link: https://news.ycombinator.com/item?id=20146535
well, for one, chrome is actually missing one big thing for me: a dark theme.
There are more, but I can't think of them currently.