We are used to multi tasking on computers and laptops. There is no native multi window or multi task option on android OS like Ice Cream Sandwich or JellyBean. Samsung phones like Galaxy S3, Galaxy Note 2 have multi window or split window functionality.
If you have a phone with bigger screen size or an android tablet, you may want to watch videos in the browser while composing email or playing games etc. You may want to resize the browser app, use split view to watch videos side by side. If you just want to watch YouTube videos or local videos, Floating Popup Video Player apps are available.
1. Floating Browser Flux
Floating Browser Flux! is a free android app that lets you open a floating browser on top of your android device screen. You can work or do other things simultaneously. You can move the browser windows, resize browser. You have lot of real estate on the android tablets like Nexus 7, Nexus 10, Sony Xperia Tablet Z etc. Floating Browsers are really helpful on bigger screen devices.
If you buy paid version of this app, You can open up to 8 windows simultaneously. In the free version, It is limited to 2 windows. This browser app also has tabs for each floating window.
2. OverSkreen (floating browser)
OverSkreen (floating browser) costs $2.49. One drawback is JellyBean support is not available yet. You can open multiple instances of the browser. You can move, resize, minimize browser windows. You can do multi tasking without going back and forth between the android apps. This browser has Adobe Flash support for android os version 3.0 or later. You can change user agent also in the browser.
You can open floating popup browsers on any android phone including Galaxy S2, Nexus 4, LG Optimus Pro G, HTC One, Xperia Z, Galaxy Grand, Droid Razr, Micromax Canvas HD etc and android tablets like Nexus 7, Nexus 10, Samsung Tab 2, Slate 7, memoPad, Asus fonePad etc.