Browser Settings
Navigate to File menu > Page setup > Margins and Headers/Footers.
Change the Top, Left, Right, and the Bottom Margins to 0.0.
Change all the Headers and Footers to "--blank--".
Printer Settings
Navigate to Control Panel > Hardware and Sound > Devices and Printers and right click on barcode label printer.
- Select Printing preferences > Set height as label height.
- Select Printer properties > Printer Settings.
- Choose Always use drivers settings under Override Application Default Settings section.