Language translation for Web pages

To help my daughter research her most recent school project, we needed the help of a French-to-English and an English-to-French translator for web pages.  For the most part, we used the Unofficial Google Translate Firefox Extension 1.4 and it worked to our satisfaction.  Yes, my daughter is a firefox user.....she calls herself a geek as well!

Since then I found a couple of other translators that both work on clipped text or web url.  They are
Google Translate and Yahoo Babel Fish.  I will them them a whirl next time.