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
DocsAfterDark
Modern, dark mode for Google Docs
Dark Mode Global
Invert light-themed web pages into dark to reduce eyestrain
Night Mode Pro
Switch to night mode and the display is much easier on your eyes!
rotheme - theming, trading and more
the ultimate theming engine for Roblox. customize themes effortlessly with our intuitive editor and real-time previews.
Custom Dark Mode
Customize your dark mode for the web!
Stop Reclame
Get rid of ads for free!
DarkCloud
Changes soundcloud.com to a dark theme.
Christmas Decorations
Add some Christmas spirit to your Web.
Global Dark Style
A configure dark theme with exception list to change everything to real dark
Titanium Cheats chess
Titanium Cheats suggests the best move, rates possible moves, warns for blunders, and shows how your game on chess.com evolves.
Custom Page Zoom
Easily set a custom zoom level for each website (or all websites)
Custom Scrollbars
Give your browser a personal touch with customized scrollbars!
YouTube Customizer
Customize your YouTube.
Google Search Dark Mode
Implements a Dark Mode for Google Search.
Fix for sidebar Facebook Messsenger™
Extension to improve the appearance of the sidebar Facebook Messenger™
Dark Theme for Google™
A highly customizable dark theme for Google products (search, images, translate, and contacts)
Mod randomizer
Randomly enables a mod and disables other mods. Can automatically identify mods.
Formula 1 Darkmode
Darkmode Formula 1
Screensaver
A screen saver for Opera.
In The Dark
Turn off the lights and use a torch to see!
Desktop Lux: Effects
Customize your Web with stunning animations and effects.
Aternify Ultimate
The Ultimate Aternos experience. Adblocker, element remover, Anti-AdBlock remover and more!
Volume of a Cylinder
Compute volume of a cylinder given radius of base and height of the cylinder.
Dark Theme for YouTube™
A Dark and Smooth Theme for YouTube
Dark Skin for Youtube™
Makes Youtube go dark-side
ZaDark – Zalo Dark Mode
Тема для YouTube - Темный карбон
Для любителей темных тем оформления
Website Theme Manager
Change your desired website's look! Choose your style from userstyles.org or write your own!
Auto Dark Theme for Discord
Make Discord automatically match your system's dark/light theme.