Extensions
uBlock Origin
Finally, an efficient blocker. Easy on CPU and memory.
Translator
Translate selected or entered text
Video Downloader VeeVee
Video Downloader VeeVee – download videos from the Internet.
Bitwarden Password Manager
At home, at work, or on the go, Bitwarden easily secures all your passwords, passkeys, and sensitive information
Sidebar for YouTube™
Easy Access to YouTube via Sidebar UI
Video Hunter Downloader
Video Hunter – download videos from the Internet.
Pacman
A Pacman game on a popup, now version 1.2!
Sidebar for Youtube Music
Youtube Music sidebar extension
Facebook Opera Sidebar
Access Facebook through Opera Sidebar.
Sidebar for Google™ Translate
Easy Access to Google Translate via Sidebar UI
Note Sidebar
Simple note sidebar which can be used to write a note, record thoughts, to-do list, meeting notes, etc.
Sidebar Calc
Sidebar Calculator - Fast and Simple
Sidebar for YouTube™
Simple access to YouTube using the sidebar UI
Sidebar Sticky Note
Free HTML5 Sidebar Sticky Notes
GX Calculator
Simple GX-style calculator adapts to the current colors and also reacts to keystrokes.
Text to Voice
Open sidebar selected text and click in context menu 'Selected text to Speech' to listen
QR Code Generator
Generate any QR code anytime, even offline
Sidenotes
Simple notes for your Opera sidebar
Vertical Tabs
Manage your tabs in the sidebar!
Sidebar Sketch
Sketch anytime on your sidebar, even offline.
Emoji Minesweeper
Play Minesweeper as Emojis!
Bing Translate
Easily access Bing Translate from Opera's sidebar
Sudoku Sidebar
Play Sudoku on Sidebar anytime in your browser! even offline!
Web Panel
Navigate to websites in the sidebar.
Simple Notes
Simple notes in a panel, with a context menu item to copy text to a note.
Sudoku v2
Play Sudoku from sidebar anytime even offline
Twitter Lite Sidebar (Unofficial)
Access Twitter Lite through Opera Sidebar. This is an UNOFFICIAL extensions.
Tabsets.net
Use the tabsets.net browser extension to safely keep track all your tabs and links in the Side Panel, locally or in the cloud
Bible-WebApp
This widget uses Logos Bible Software's Biblia.com Bible API service to get the Bible text
Google Messages Sidebar
Access to Google Messages website on the sidebar.
Bookmarks Manager and Viewer
An elegant bookmark manager with fuzzy search and more
uMatrix
Point & click to forbid/allow any class of requests made by your browser. Use it to block scripts, iframes, ads, facebook, etc.