The Best Turn Off the Lights Alternatives in 2026

Dark Reader adds adjustable dark mode to websites across Chrome, Firefox, Safari, and Edge.

Tint webpage colors by time of day with Circadian, a browser extension offering daytime, sunset, and bedtime settings.

Custom Dark Mode applies customized dark styles to webpages through a browser add-on.

Doqment combines the Mozilla HTML5 PDF viewer with an add-on for reader mode.

Customize the new-tab page with Mue, an open-source browser extension offering backgrounds, quotes, and widgets.

OctoLinker turns module-loading statements in GitHub code into links to the referenced modules.

Momentum turns a browser’s new tab page into a focus workspace with goals, timers, site blocking, and soundscapes.

Bonjourr provides a customizable browser start page for new tabs, with a minimalist layout and background options.

Mission Control turns a new tab into a page for organizing bookmarks and managing tasks.

Auto Tab Discard unloads inactive browser tabs after a specified time to reduce memory use and background activity.

Add subtitles to online videos with Substital, a browser extension designed for that purpose.

AutoPagerize automatically loads successive pages on supported websites through a browser extension.

Linksort helps users save and organize links, with a browser extension for one-click bookmarking.

Block pop-ups, overlays, cookie notices, and ad-block warnings with the open-source PopUpOFF browser extension.

Build a custom new-tab page with Anori, a browser extension offering folders, color schemes, and widgets such as tasks, notes, and weather.

Amino provides a live CSS editor in a browser extension, letting users customize websites with persistent styles and create themes or skins.

Distill monitors selected webpage content for changes and can send alerts through email, push notifications, or messaging apps.

CRX Viewer opens browser extension packages or store pages and provides tools to inspect their images, code, markup, and locales.

Stylus restyles websites through a browser extension forked from Stylish; its description says the fork removed analytics from the earlier codebase.

The behind add-on can reveal background and embedded images, including images hidden beneath page layers or encoded in page content.

Skip sponsored segments, opening animations, and prompts in Bilibili videos with this browser extension.

Caffeine keeps the operating system from sleeping or hibernating while the browser extension is active.

MONKNOW combines favorite sites, search, weather, to-dos, and wallpapers in a customizable new-tab browser extension.

Complexity is a browser extension that adds model selection and other controls to Perplexity.ai.