Which tools and which versions of browsers are you comparing? I guess as a developer you would be using Canary Chrome vs. Nightly Firefox, to get the latest features, right?

I find Firefox less resource-hungry and with the WebIDE and Code Snippets that don't need to import/export to devtools source snippets it might even be ahead of Chrome.

> I guess as a developer you would be using Canary Chrome vs. Nightly Firefox, to get the latest

Not always. As a developer I use the latest stable Firefox, since that's what I can recommend to my users.

you have to do testing in released browsers, of course, but you wouldn't get the latest devtools features that way, neither in firefox nor in chrome.

> its developer tools are terrible compared to chrome. If you have the network console open while a large page loads, good luck interacting with the chrome until it's finished.

The only annoyance I have with the developer console is something they only recently added: you now need to right click in the console and tick "Log request and response bodies" every single time. No about:config option. But aside from that, I never noticed much difference. There are some things I like in Firefox that I missed in Chrome but that's probably because I'm used to Firefox. When I went the other way around, going from Chrome to Firefox after a few months of Chrome usage, Firefox had actually caught up and I didn't need Firebug anymore at all. Never noticed anything missing.

> you now need to right click in the console and tick "Log request and response bodies" every single time

Yes, seems like there could be a pref for that. Filed a bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1064458.

Btw, we debug a lot of JS code and although Chrome has better developer tools they do crash... a lot and are unresponsive too. Chrome/Webkit should have native tools not the one written in JavaScript because this is a mess. They are still better than Firefox's dev tools.

> although Chrome has better developer tools they do crash... a lot and are unresponsive too.

I don't know what's better about them, but yeah I too noticed the crashes.

Firefox's developer tools are terrible even compared to Internet Explorer 10/11 (which are actually surprisingly good). But at least Firefox as 3D doodads, because that's important...

But that all being said, if ANY developer addon lets me manually edit cookies then I will happily use it. Right now they all only let you delete, not alter, cookies. So it is hard[er] to test your site's security against malformed or malicious cookie issues.

Tamper Data.

> Firefox's developer tools are terrible even compared to Internet Explorer 10/11

Wow what, care to elaborate? I've attempted to use them once and couldn't do the most basic of tasks, went straight to getfirefox.com. Not sure what I tried to do, probably something network related or maybe css modifying.

I personally can't stand the UI let alone the features of the ff dev tools.