OK, I've made it to version 42 and I have to say this is the slowest to load most hangs of any version I've ever used. I've tried everything. No add-ons, checked my DNS and entire network. Tried suggestions from the Mozilla site to speed things up and even checked for malware. I'm at my wits end because I love Firefox but right now on my Windows 10 machine, Google Chrome is way faster. I even deleted and re-installed FIrefox. This is a nightmare. Am I missing something like a hidden file when I delete? There are times half a pge loads up and I could get a cup of coffee and it's still loading. Any ideas would be greatly appreciated.