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How to customize the font in Firefox [Tip]

Firefox doesn’t have any built-in options to change its menu, tab and address bar fonts with. However, there is a great Firefox add-on with which you can instantly select alternative fonts for the browser. With Theme Font and Size Changer you can choose alternative Firefox fonts, font sizes and colors.

Open this page [1]and click on the + Add to Firefox option to add it to Firefox. Then you’ll find a Theme Font Size Changer button on the add-on bar at the top right of Firefox’s window. Click on that button to open the window in the shot below. Alternatively, select Tools > Theme Font Size Changer.

Firefox 2 [2]

Now select the Font drop-down menu to open a list of fonts as in the shot below. Choose a font from that list, and the extension’s window will instantly switch to it. In addition, that will also customize the Firefox window font.

firefox [3]

The extension includes plenty of other font options. Select the Size drop-down menu to enlarge or shrink the font. Click on Style or Weight to add italic or bold formatting to the font.

firefox 3 [4]

At the bottom of the extension window there is an Enable support for Context Menus check box. Click on that to add new fonts to the browser’s context menu. Then right-click the browser window to open the context menu in the shot below.

Firefox 4 [5]

Theme Font and Size Changer is a fantastic extension to customize Firefox with. You can find further details at the add-on’s homepage [6].