This AddOn looks so promising, yet it looks as it has been left and no longer updated? I'm really linking it, yet I wish there was a better bookmark managing in the default view. I like seeing the news, weather, Rss, notes... but not being able to customize the bookmark kind of deal breaker. Yet this Addon looks amazing.

Its promising, unfortunately search bar only allows for google searches, and settings doesn't help much with customizations, you can't have to-do list and calendar without the news feed (i suppose you can fix it by linking a dead rss feed, that way it'll show nothing), also you cant link any of these to an existing account (re, sync your own to-do's or calendars). Also you can't delete links to websites(amazon, aliexpres etc)
I think its a nice idea, and it might work for you if you usea this kind of things.