subdomain exceptions Rated 4 out of 5 stars

really helpful for blocking sites I visit multiple times daily so it clears up my history storage
would be great if there could be a list of blacklisted sites available as I sometimes forget which ones I've added to the list and may want to whitelist...
also, for some sites I don't want to block the whole domain and only specific subdomains (ex. social dashboards/walls/etc. rather than individual pages)

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