I don't hate Firefox, I use it as my primary browser, but 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.
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.
Not always. As a developer I use the latest stable Firefox, since that's what I can recommend to my users.
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.
Yes, seems like there could be a pref for that. Filed a bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1064458.
I don't know what's better about them, but yeah I too noticed the crashes.
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.
> 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.