The fastest Firefox ever with Photon UI and better tooling
hacks.mozilla.org
hacks.mozilla.org
I starting using nightly expecting to have stability problems and then just drop it, but can't remember it crashing or having any issues at all.
The speed improvement has been nicer than expected, but it's particularly impressive that they've done it while also keeping things so stable and working all this into such a large complex piece of existing software.
This kind of work and their freedom focused goals will probably make a donor out of me.
Be aware that some extensions might not work yet. E.g. refind is one of those which need to be updated.
I dunno, 0.x and 1.x Firefoxes (Firefoxen?) were pretty fast.
UPDATE: Just updated my beta, and tabs UI looks rather ugly IMHO. Bigger elements than older design, more bulky. Sharp rectangular shapes of each tab UI element are also very standing out. It looks like a touchscreen UI to me.
It also completely disabled all common add-ons like Adblock Plus and Stylish. That's a BIG problem. Looks like Adblock Plus has a compatible beta version at least.
It does feel much snapper though.
So still a pass for me, might seem stupid but its a major thing for easy of use.
Otherwise, you might want to set "browser.urlbar.doubleClickSelectsAll" to "true", so you can at least get it with double-clicks.