Themes

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What is a theme?

A theme is a visual design or style for the application. Each application (Firefox, Thunderbird, or Mozilla Suite) comes with a default theme, but you can also choose from a variety of other themes available to find one (or more!) that suits your own personal tastes. By changing themes, you can get a new color scheme, a different set of icons, and a whole new look and feel to the application.

Sources for themes

Unless otherwise noted, each site has themes for Firefox, Thunderbird, and the Mozilla Suite.

  • Mozilla Update: a good place to browse available themes.
  • The Extensions Mirror: has numerous themes for Firefox and for Thunderbird.
  • Mozdev: a list of links to sites of some of the people who create themes.
  • Themes forum at MozillaZine: a good place to check out themes that are currently being developed, or to discover themes that are not available at Mozilla Update.

Installing, switching, and uninstalling themes

Installing

After you've installed a theme, as described below, you must exit and restart the application before it can be used.

Firefox

  • When you find a theme that you want to install, click on the on "Install" or "Install Now" link.
  • Alternatively, save the theme to your computer and install using this extension.
  • Note: with Firefox 1.0.2 on Mac OS X with Tabbrowser Extensions installed, themes will not install from the web. Only using latest version of Themer extension works.

Thunderbird

  • After finding a theme that you want to install, first save it to your computer (right-click on the download link and choose "Save Link As...") in a convenient location. Then in Thunderbird go to the Tools menu, select Themes, press the Install button, browse to the theme that you just downloaded, and click the Open/OK button.

Mozilla Suite

  • When you find a theme that you want to install, click on the "Install" link.

Switching

Two switch among your installed themes, use the application's built-in interface. After selecting a new theme to use, you will need to restart the application to see it.

Firefox & Thunderbird

  • Go to "Tools -> Themes", select the theme you want to use, and click the "Use Theme" button.

Mozilla Suite

  • Go to "Edit -> Preferences -> Appearance -> Themes", select the theme you want to use, and click the "OK" button.

Uninstalling

The best way to uninstall a theme is through the application's built-in interface.

Firefox & Thunderbird

  • Go to "Tools -> Themes", select the theme you want to uninstall, and click the "Uninstall" button.

Mozilla Suite

  • Go to "Edit -> Preferences -> Appearance -> Themes", select the theme you want to uninstall, and click the "OK" button. Note that you cannot uninstall the two pre-installed themes ("Classic" and "Modern") or the theme that you are currently using.

Troubleshooting

Other information