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I can change the font size in Firefox, but it does not change the font size on the titloe bar or tabs. How is this done?

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  • 8 have this problem

The tool bars, title bar and tabs have suddenly appeared in a smaller font. I know how to change the font size of a message, but this does not affect the fonts in question.

Additional System Details

This happened

Every time Firefox opened

Installed Plug-ins

  • Coupons, Inc. Coupon Printer DLL
  • Coupons, Inc. Coupon Printer Plugin
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • RealPlayer(tm) LiveConnect-Enabled Plug-In
  • RealJukebox Netscape Plugin
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
  • Adobe PDF Plug-In For Firefox and Netscape 10.0.1
  • Default Plug-in
  • Shockwave Flash 10.2 r153
  • Adobe Shockwave for Director Netscape plug-in, version 11.5
  • iTunes Detector Plug-in
  • Next Generation Java Plug-in 1.6.0_21 for Mozilla browsers
  • 4.0.60129.0
  • Motive Plugin for Mozilla Browsers
  • RealPlayer(tm) HTML5VideoShim Plug-In


  • User Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv: Gecko/20110319 AskTbARS/ Firefox/3.6.16

More Information

Helper7677 165 solutions 1653 answers

Changing font and font size in Tools > Options > Content > Fonts and Colors (Firefox 4: Firefox button > Options > Options > Content > Fonts and Colors) only affects the area of the browser that displays the web page/site.

To change the Firefox interface Fonts and Sizes, see the information on the following extension. Look at the images in the image gallery on that page. If you use a Theme with Firefox, take special note of the information about incompatibilities with some Themes.

You need to update the following plugin(s):

  • Adobe Shockwave for Director Netscape plug-in, version 11.5
  • Next Generation Java Plug-in 1.6.0_21 for Mozilla browsers
  1. Check your plugin versions on either of the following links':
  2. Update Shockwave for Director
    • NOTE: this is not the same as Shockwave Flash; this installs the Shockwave Player.
    • Use Firefox to download and SAVE the installer to your hard drive from the link in the article below (Desktop is a good place so you can find it).
    • When the download is complete, exit Firefox (File > Exit)
    • locate and double-click in the installer you just downloaded, let the install complete.
    • Restart Firefox and check your plugins again.
    • Download link and more information: http://support.mozilla.com/en-US/kb/Using+the+Shockwave+plugin+with+Firefox
  3. Update the Java plugin to the latest version.

Modified by Helper7677