Not working on FF 16 beta neither Rated 1 out of 5 stars

This add-on is neither working on FF 16 beta on my SGS2 with OS 2.3.5. There is just no menu anywhere for showing source code.
But a previous version of FF had this feature implemented without add-on. Anyway, FF for android is a long and far way from being usable yet.

This user has 2 previous reviews of this add-on.