Old Location, New Title Rated 4 out of 5 stars

This is my favorite addon for manga and the like, what I'm hoping to get by writing this is when you click the button for something that's already bookmarked it gives you the usual message but what I want is a way for it replace the old title with the current one please.

Also is it possible to add the content from the tag meta.description when you replace a bookmark.

This review is for a previous version of the add-on (1.3.9). 

See version 1.4, for both requests.