One of the key tests on the browser for any web application is to test in the minimum and maximum resolution settings so that the application’s look and feel is tested in the most commonly used screen resolutions. One way to do it for a tester is to change the desktop settings for each resolution and test it. But this test has to be repeated every time there is a user interface change in the application. A couple of alternatives is available that can simplify though with a caveat. One can use browsersize.com and the other option is to use the web developer Firefox extension. These two help one to set the browser window size in different standard screen resolutions and test the application. Now the caveat part is there is a difference in the appearance. What these tools do is just set the window size to the appropriate width and height. The screen resolution also changes the appearance of items displayed in the screen. For example if the screen resolution is lower then the text size appears to be bigger. Nevertheless whatever the approach is taken the screen resolution test is one factor that still needs to be considered owing to the varied usage of resolution among the internet users as evident from the browser statistics in w3schools. Good part from the statistics though is there seems to be almost no one using the lowest resolution of 800×600.