Dark Mode WebExtension is a Firefox add-on that provides users with a convenient way to switch their browser to a dark theme, ideal for nighttime usage. With a simple ON/OFF toggle in the toolbar, users can instantaneously activate the dark mode, enhancing their browsing experience while reducing eye strain. The extension offers over 50 customizable themes, allowing users to choose a look that best suits their style. An options page enables easy management of themes and additional settings, ensuring a personalized experience.

A standout feature of this extension is its white-list function, which permits users to exclude certain domains from dark mode. This can be accomplished either by manually adding domains in the options page or through a context-menu item via right-click. Such flexibility allows for a tailored browsing experience, making Dark Mode WebExtension a valuable tool for those who frequently browse during the evening hours.