If you are using Compiz, go to "Window Management" (under categories or scroll down in the main window) and do the next:
DO NOT ENABLE WINDOWS RULES YET!
Open "Window Rules".
In the "Matches" tab, find
"Maximized" and write
Then enable Window Rules. (Check box on left or in main window)
Now, all your windows (and I mean: ALL) will ALWAYS open Maximized.
WARNING! This will also include dialogs, normal windows, and every window will act as you requested. This was your wish, right? always be sure that you really wish what you wish. :)
You can also do several things, which includes (but not limited to):
- Enabling a single program to open
maximized, by clicking the "plus"
icon in the right side and pressing
the "Grab" button in order to choose
the window of the program. which
should be running in order to do
this, you can also write the title,
role, type, name, etc.
- Exclude a single program to not
observe this feature by doing the
last steps and making sure you enable
the "Invert" button in the dialog
- Use other windows rules, like:
Skip taskbar: in order to the windows won't appear in the task bar.
Skip pager: this way the windows won't appear when you change an application by using [Alt][Tab] or [Super][Tab]
Above: the windows will always stay above the rest of the windows keeping the focus always.
Below: Useful when you wish an application, like the terminal, to be as "embedded" into the desktop.
Fullscreen: doesn't need explanation.
Non movable, Non resizable, Non minimizable, Non maxibizable, Non closable, Non focus: does what it says.
A screenshot is placed here for you to see this plugin's in action:
HOW TO OVERRIDE THIS WINDOWS BEHAVIOUR:
You will be in the need to gain access to compiz, and disable the "Window Rules" plugin.
If you did something that don't allow you to see compiz, (something like: making a window to stay "above" of the other and maximized or fullscreen), open a terminal and disable compiz by running:
The uppercase are just to emphasize important text. Can be edited and changed by anyone if needed. Thank you.