Rated 1 out of 5 stars

chez.com is "engaged in the distribution of malware" according to hpHosts (EDIT: And the e-mail from the developer of this extension is bigou "at" CHEZ.COM)
http://hosts-file.net/default.asp?s=chez.com
yauba.com is a red site according to Norton Safe Web.
http://safeweb.norton.com/report/show?url=yauba.com&x=0&y=0
(EDIT 20-09-2009: Old news, Norton has switched Yauba's rating to green. I wish I knew what's exactly going on...)
And last but not least, Yauba claims to be from India, but according to Norton and Flagfox it's from U.S.A.
"Trust nobody in the Internet".
(Sorry for the double post. My mistake.)

This review is for a previous version of the add-on (20090430).