I was under the impression that the new version would be Firefox 6, but when I did a search, I was presented with download page of Nightlies, with no ID. When I selected the OS, I was told that I was downloading Firefox 8a1.
I did it, anyway, and was able to use all my addons, thanks to Nightly Tester Tools, although they were incompatible ( I was using a profile formerly used for Firefox 4.0.1.
Now, I removed 8a1, and downloaded and installed 6b1. It works fine, and has only a couple of compatible addons, but I was told that it was outdated. ThEre is 7a1, but are they going to skip 6, and go directly to 8, or 7?
I will send a feedback for all it is worth, and let you know what is the score, if I get a reply.