Resize window with a keystroke. - Resizes the active browser window to the predefined list of sizes. - Requires no special permissions. - Use the default keyboard shortcut Ctrl+Shift+A (Command+Shift+A for Mac) to resize to the next window size in your list. Keep using the shortcut to rotate window sizes. - You can add and remove sizes in the window sizes list. Go to extension options to do that. - You can change the shortcut. Use "Keyboard shortcuts" in the extension settings to do that. - Click on the extension icon to enable / disable the extension temporarily.