Any way to force apps into full screen mode?

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Im trying to use the KF to view pdf files and edit word files using QuickOffice Pro, but a good amount of space is taken up by the notification bar and the bottom buttons when in landscape mode. Is there any way to force apps like this and the browser app to go into full screen mode?

Also, is anyone running Dolphin Browser HD and does that work in full screen mode?

Edit: I'm not sure what I did but QuickOffice Pro is automatically going into full screen mode now when I rotate to landscape. Dolphin Browser also works in full screen mode and it's pretty awesome.

I would also like to know how to have the dolphin HD browser open in full screen without gesturing, just defaulting when opening. Thank u

For Firefox, there is a fullscreen plugin. There may be other plugins for other apps as well.