How to Zoom In or Zoom Out in Mozilla Firefox Browser on Windows 10?<br /><br />Step 1: Open Firefox web browser.<br /><br />Step 2: Click on Menu icon at the top right of Firefox.<br /><br />Step 3: To 'Zoom In' click on '+' button. <br /><br />Step 4: To 'Zoom Out' click on '-' button.<br /><br />Also, you can use 'Ctrl + +' button on your keyboard to Zoom In.<br /><br />and 'Ctrl + -' button on keyboard to Zoom Out.<br /><br />It's done.<br /><br /><br />Thanks for watching, please like and subscribe <br /><br />==============================================<br /><br />https://www.facebook.com/HowtoTutorialsByAmit/