Comment 1 for bug 152973

One more fullscreen-related bug that i forgot:

6. mouse response sluggish in firefox when fullscreen. REPRODUCE: Open fullscreen (not maximized!) firefox, go to a webpage which fills a couple of screens vertically so you get a vertical scrollbar. go to a text only page so that you know that the page itself is not a resource hog. NOW: 1) use the left mouse button to click and drag the vertical toolbar. on my system there is a ~1sec lag before the window reacts to the mouse click at all. 2) click and hold on some text, wiggle your mouse to select text. notice the ~1 second lag here too. very inconvenient. switching the window out of fullscreen mode makes it react like normal, quite instantly.