This is good news guys. I've been using x64 Nightly for ages, always running it alongside either x86 FF or x64 Pale Moon (on different machines). I never had any problem with either of them, but it surely feels better to run a "stable" version rather than Nightly that is in principle changed on a daily basis (although I always have automatic updates disabled and update it only every now and then).
Add-ons work for me in all of those browsers, in fact I've always thought that the "argument" that Mozilla put up for not offering a 64-bit version of FF (that is, add-ons don't work, mostly flash and java) is complete BS - Java has had a 64-bit version for ages and Adobe caught up already years ago. Most other add-ons work on Nightly or Pale Moon without a problem, even the ones we're not supposed to talk about.
I was however rather happy to run two different browsers side by side with different profiles. That way, whatever traces various websites leave on my machine (and they do, no matter how hard I try to avoid that)are at least separated (I do not visit my bank's site from the same profile used for general browsing, for example). Hopefully this new version will run alongside Pale Moon as well.
Just installed it on this 10. Works fine!
I find that most automatic updates are prompted via the task scheduler so i remove them there.
I took the dive and I'll play with the 64bit nightly build of FF.. looks good so far.
Hmm, even though I chose Custom Install it installed the Maintenance Service without asking. It didn't seem any faster than 32 bit FF 36.01 to me. Also on a Laptop that dark theme is unreadable. I took it off.