I have noticed this on several other sites (slashdot.org lifehacker.com androidcentral.com etc). I've gone over to using supergenpass 1.3 from the archive:
http://supergenpass.com/customize/?archiveBtw, i'm using Chrome 11.0.696.12 dev on Win7, and i've seen the problem for as long as I've been using chrome (since about nov. 2010