If you understand screen real state*, then probably you realize the wastage of space iGoogle homepage does on screen. Inspite of getting variety of information on a single page, iGoogle layout has always annoyed us. The header and sidebar tabs consumes too much space and virtually of no use. Removing them would be such a pleasure.
Particularly, for low resolution monitors and netbook owners, who cannot view the entire iGoogle start page in a single window, sidebar is a big annoyance. Google should have made a setting to hide these for limited screen space users. In such situations, iGoogle tab remover addon comes handy.
iGoogle Tab Remover Addon removes sidebar navigation tabs and header image which blocks most of your screen. It will hide them completely so you can have more room to browse content. And whenever you want them back, just instruct this addon to do so from Tools > Disable iGoogle Tab remover from Firefox menu.
Along with removing sidebar, this addon will let to resize header image and hide/unhide the navigation tabs by simple click of mouse. You can download this add-on here.
* Screen real state : The portion of monitor space that is visible to user without scrolling down.