Rated 5 out of 5 stars

As usually, Silvermel 1.4.3 works like a charm. My OS is WinXP SP2 and I use FF 3.6.19. Silvermel 1.4.3 is available when you click on "View all versions".

This review is for a previous version of the add-on (1.4.2.1-signed).  This user has other reviews of this add-on.