Customize settings and preferences
Display and appearance
Learn how to change your toolbar, font sizes and browser colors
Restore the Menu bar in Firefox
The Firefox Menu bar (File, Edit, View, History, Bookmarks, etc.) may be hidden or missing. Learn how to restore the Menu bar.
Bookmarks Toolbar - Display your favorite websites at the top of the Firefox window
Learn how to use the Bookmarks toolbar in Firefox for quick access to often-used bookmarks.
Font size and zoom - increase the size of web pages
Zoom is a feature which allows you to increase or decrease either the size of a web page or the size of the text. This article explains how it works.
Use themes to change the look of Firefox
A theme is a type of add-on which changes the visual appearance of Firefox. Learn how to find, install, and manage themes in Firefox.
Customize Firefox controls, buttons and toolbars
You can customize Firefox in many ways. This article explains how to customize Firefox controls, buttons and toolbars.
Change the fonts and colors websites use
This article describes how to customize the way you see websites by choosing font styles and colors that will override those used by the websites.