[Htmlvalidator-help] Help for choosing algorithms

[<mah...@ho...>]

Wonderful extension!

But I miss the window that appears only once, at installation, and 
explains the pro and cons of both, Tidy and SGML, algorithms. It  should 
always be available in Options... , especially when choosing or switch 
from one to the other.

Is there a way I could trick the extension (manually with about:config?) 
to display this window again, like on install?

Have an happy day!