Mozilla Firefox : Dark and Light Themes (older version)

  1. Type: about:config
  2. Type theme in Search filter
  3. Double Click browser.devedition.theme.enabled and change value to True
  4. Double Click devtools.theme and change value to dark or light

 

showCustomizeButton

  1. Type: about:config
  2. Type theme in Search filter
  3. Double Click browser.devedition.theme.showCustomizeButton and change value to True
  4. Press F12 key and Click Settings icon (gear icon)

 

cr. http://www.askvg.com/tip-enable-hidden-secret-dark-and-light-themes-in-mozilla-firefox/

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sornram9254

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