When comparing Card Board vs Tabliss, the Slant community recommends Tabliss for most people. In the question“What are the best new tab extensions for Chrome?” Tabliss is ranked 13th while Card Board is ranked 55th. The most important reason people chose Tabliss is:
FOSS and has necessary features to make a great start up page. Highly recommend.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Open source (MIT)
Source code can be accessed at https://github.com/dotlouis/cardboard
Pro Lots of widgets
The extension has cards for apps, bookmarks, quick settings, top sites, downloads, history, session and system.
Pro Can provide system information
The extension has a widget that displays CPU and memory usage as well as storage information.
Pro Google Now style layout
The extensions has a clean customizable card-based interface.
Pro Free and Open source and gets the job done
FOSS and has necessary features to make a great start up page. Highly recommend.
Pro Has a web version
Phones usually don't support extensions. A web version is a godsend, especially since it has a dedicated mobile webpage.
Cons
Con Limited customization options
While it's possible to choose which cards are displayed, there's no way to change the order of cards.
Con Essential features only
This extension features a few but useful features only. But it is a great new tab page nonetheless.
P.S. If you wanna add new features, you can just fork the source code if you are that kinda guy (its FOSS).
Con Limited customization
Widgets can't be customized a lot.