Built-in themes in Firefox - alternative to complete themes

Complete themes have been replaced by new, built-in themes with lighter and darker color schemes.

Built-in themes can be enabled by following these steps:

  1. Open the Add-ons Manager by clicking the menu button Fx57Menu , followed by Add-ons.
  2. Click the Themes panel.
  3. Select the theme you want and enable it.

Additionally, thousands of lightweight themes are available from addons.mozilla.org. For more information, see Use themes to change the look of Firefox.

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