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Necessary cookies are absolutely essential for the website to function properly. You can download many more themes for Firefox web browser from the website that has thousands of fans-created themes for download. Mozilla Firefox shows up exactly the same in the webpage area – the themes are applied only in the window frame, toolbar and the tabs area. Similarly, when you enable the Light theme, Firefox toolbar gets the grey appearance. When you enable the Dark theme, Firefox toolbar gets the black interface everywhere. You can click on the Enable button against any of these themes to enable and apply them. You will see three themes in the list of installed themes – Default, Dark and Light.Select the Themes section from the left side.You can also click on the menu icon near the top-right corner of Firefox window and select Add-ons from the menu. Launch Firefox web browser and enter about:addons in the address bar.If you have not yet updated to the new version of Firefox, then you can download the new version by visiting. Note: These steps apply only to Firefox version 61.0 (and perhaps any future versions). Here is how you can enable these new themes:

The light theme uses grey as the color for the Firefox interface. The dark theme switches the entire interface to black and only webpage are allowed to have their own color schemes. You can enable these themes to reduce the stress on your eyes when using your computer at late night or when there is not enough ambient light in the room. Mozilla Firefox, the latest version 61, offers two in-built themes now – a dark theme and a light theme.
