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Pro Flash support
The browser can play Flash videos, Flash games, etc.
Pro Floating tabs
You can open a page as a floating window, you can open as many floating windows as you need. The windows can be individually resized and positioned wherever you want. The window can float on top of other applications as well.
Pro Functionality can be extended via add-ons
You can search the play store for "boat borwser addons" to find add-ons for social media, productivity, etc.
Pro Built-in QR-code scanner
Con No directory for add-ons
The only way of finding add-ons is by searching for them in the Play Store. There's no well organized directory available.