any one tried? going to test it now,
http://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/4.0b1-candidates/build1/win32/en-US/Firefox%20Setup%204.0%20Beta%201.exe
sorry if repost
It's 4.0 beta 1, not 4.1
Besides, it's not even a beta yet - simply a candidate for beta