I installed
the EFF extension today.
It allows to automagically switch to the https version of a web site, but a per site configuration file needs to be added (cf.
this page).
This works for me:
---------------- Tokyotosho.xml ------------------------------------------------
<ruleset name="Tokyo Toshokan">
<rule from="^http://(www\.)?tokyotosho\.info/" to="
https://www.tokyotosho.info/" />
<rule from="^http://forums\.tokyotosho\.info/" to="
https://forums.tokyotosho.info/" />
</ruleset>
---------------------------------------------------------------------------------
In hope it helps,
A+,