How to Change the Font Size in a Browser
You can easily increase or decrease the text font size in your web browser so that content is easier to read. Most web browsers offer this feature in just a few steps. The steps may vary slightly depending on the browser.
Open Internet Explorer. Go to "View" at the top of the page. Scroll down to the "Text Size" option with your mouse.
Adjust Internet Explorer's font size settings by choosing "Largest," "Larger," "Medium," "Smaller" or "Smallest." Test each setting until you find a text font that is comfortable for you to read.
Find the "View" tab at the top of the page if you use Mozilla or Netscape. Select "Text Size," then pick "Increase," "Decrease" or "Normal."
Make the font larger in Mozilla or Netscape by pressing "Ctrl ++." For the smallest size, hit "Ctrl +-." To leave the font at medium, or normal, choose "Ctrl +O." These are keyboard shortcuts that you can use as an alternative to Step 3.
Pick the "View" tab at the top of Opera after opening it. Then, look for the "Zoom" option. With Opera, you must choose a percentage, such as 50 percent for a smaller-sized font, 100 percent for a normal text font or 200 percent for the largest font.
Go to Safari if that is your computer's web browser. Choose the "View" tab at the top of the page. Scroll down the tab until you get to "Make Text Bigger" or "Make Text Smaller." Adjust the font by picking one of these options so that you can surf the web without straining your eyes.