Also, this is a little extra request that might be ambitious or not. Okay here goes:
What about useing the tab bar for desktop applications too? Like a hybrid bar to vert windows programs in it and webpages too. Taht way k-meleon can demonite in its fullscreened glory like an opperative system on its own.
Since KM is the only browser I know of that allows you to place the tab bar alongside the other toolbars, you can create an app toolbar w/shortcuts to all your favorite applications and place it alongside your tab bar. Add the following pref set to false. Lock your toolbars and you'll have what you want. It'll appear seamless as one bar, half of it tabs, the other half apps.