From ftp://ftp.mozilla.org/pub/b2g/nightly/latest-mozilla-aurora/ , I downloaded the b2g-26.0a2.multi.win32-localizer.zip and unpacked it. After launching the b2g.exe, a small window pops up, rarely showing anything of the content area which remains black. Patching the install by replacing the 'gaia' directory with the one from the Linux emulator (which worked on 1.1 in the past) doesn't work this time.
Created attachment 818444 [details] Screen Shot 2013-10-17 at 3.36.11 PM.png On the mac with the same build, I get a 404 page. I also noticed that there are no extensions in B2G.app/Contents/MacOS/gaia/profile