Could you create some kind of macro that pages through, then selects all unread, then marks as read? Maybe with something like this: https://addons.mozilla.or

Could you create some kind of macro that pages through, then selects all unread, then marks as read? Maybe with something like this: https://addons.mozilla.org/en-US/firefox/addon/3863 https://addons.mozilla.org/en-US/firefox/addon/3863