Rated 1 out of 5 stars

As some had already reported, Dcurrency stopped working. Hope a new compatible version should come out soon. Very indispensable tool as a 5 STAR program. But now I can give only one star as it only shows loading/updating...
RightClick and open Option and Click to close
then, it shows currency as in
1 usd (flag)=xxxx your choice of currency

This review is for a previous version of the add-on (0.3.0). 

I made (in a hurry) a new version 0.2.13 that uses French Yahoo!Finance site. It works!
You can download it in Version History page when you log in.
https://addons.mozilla.org/fr/firefox/addons/versions/6462