No new add-ons to FF or any other browser, but issue is occuring with every browser (FF, Opera & IE), but FF is primary... All popup windows are now opening maximized...this "solution" is not working: You need to restore your main window, resize it to some different size, open a link to a popup, it should have its desired size and should not be maximized. after that you can maximize you main window again. Anyone have any other ideas as this is happening with all browsers?..again...nothing new has been installed...either program/software wise, or browser wise...