Extensions
Opera Ad blocker
Built-in Ad blocker blocks ads and lets you surf the web up to 3x faster.
Adblock Plus
Block YouTube™ ads and pop-ups & fight malware!
Dark Mode
A global dark theme for the web
Megane for H-Chan
Removes blur and other kinds of censorship on hentai-chan and nude-moon
DocsAfterDark
Modern, dark mode for Google Docs
Фон ВКонтакте
Night Mode Pro
Switch to night mode and the display is much easier on your eyes!
Stop Reclame
Get rid of ads for free!
Custom Dark Mode
Customize your dark mode for the web!
Dark Mode Global
Invert light-themed web pages into dark to reduce eyestrain
Auto Dark Theme for Discord
Make Discord automatically match your system's dark/light theme.
Dark theme For All Websites
Apply a high-contrast Dark theme to ALL websites - Save your eyes with a dark background and light-colored text.
Fix for sidebar Facebook Messsenger™
Extension to improve the appearance of the sidebar Facebook Messenger™
DarkCloud
Changes soundcloud.com to a dark theme.
Custom Scrollbars
Give your browser a personal touch with customized scrollbars!
YouTube Customizer
Customize your YouTube.
Fullscreen Anything
Maximizes images, videos, and games in browser windows.
Dark Theme for Google™
A highly customizable dark theme for Google products (search, images, translate, and contacts)
Desktop Lux: Effects
Customize your Web with stunning animations and effects.
Librus Average
This extension shows grade averages hidden by Librus Synergia
Dark Skin for Youtube™
Makes Youtube go dark-side
Gentle Night Mode
An addon to invert the color of any webpage/website, making contents of any website less stressful on your eyes.
Channel Blocker
Allows you to block YouTube™ videos and comments by blacklisting users and/or by using regular expressions.
YouTube Design Preserver
YouTube Design Preserver preserves the YouTube design that you've chosen permanently!
Global Dark Style
A configure dark theme with exception list to change everything to real dark
YouTube 'recommended' ads remover
Remove 'recommended' ads on YouTube
ContentBlockHelper
Helps you to block advertisements, tracking or any scripts and any annoying contents with easy methods.
Dark Theme for YouTube™
A Dark and Smooth Theme for YouTube
ZaDark – Zalo Dark Mode
Dark Theme for YouTube™
Turn dark theme for YouTube on and off the easy way
FreeStyler
Styles and skins for all popular sites in the web
Website Theme Manager
Change your desired website's look! Choose your style from userstyles.org or write your own!