Ok, I'm going to blow of steam about a linux desktop user interface problem; there may be more appropriate places, but I guess this isn't the worst place.
I was googling for something like "free music download sites" and I found a link to http://www.mp3downloadhq.com/. I'm using Moz 1.5 and clicked on the link to load in a tab in the background. Boom! My browser is resized to fullscreen. I have my menus on top, but the bottom was hidden below GNOME's bottom bar.
I managed to drag the GNOME bars to the sides instead of top and bottom, but the bottom of my browser was still below the bottom of the screen and I couldn't resize it.
Well, eventually I managed to get it, although I can't say for sure what I did. But I fought with my browser for at least five minutes.
This is not my idea of being in control of my computer. I've had this happen with fvwm, and while it's bad, I can hit Alt-F11 (I think; it's been awhile) to get the top the browser window back so I can move the window into another screen where the corner is grabbable. It took me a couple of times to learn that maneuver, but even when I know what to do, it's a pain in the butt.
I'm supposed to be in charge of my computer here! Ok, I just went under Edit->Preferences->Advanced->Scripts & Plugins and turned off "Move or resize existing windows". I hate to do that, because it could have some useful purpose ... oh wait, I've only ever seen that used for evil. So, I guess it's OK.