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
Video Hunter Downloader
Video Hunter – download videos from the Internet.
Sidebar for YouTube™
Easy Access to YouTube via Sidebar UI
Pacman
A Pacman game on a popup, now version 1.2!
Sidebar for Youtube Music
Youtube Music sidebar extension
Sidebar Calc
Sidebar Calculator - Fast and Simple
Facebook Opera Sidebar
Access Facebook through Opera Sidebar.
Sidebar for YouTube™
Simple access to YouTube using the sidebar UI
Note Sidebar
Simple note sidebar which can be used to write a note, record thoughts, to-do list, meeting notes, etc.
Sidebar Sticky Note
Free HTML5 Sidebar Sticky Notes
Sidebar for Google™ Translate
Easy Access to Google Translate via Sidebar UI
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
Vertical Tabs
Manage your tabs in the sidebar!
Sidebar Sketch
Sketch anytime on your sidebar, even offline.
Emoji Minesweeper
Play Minesweeper as Emojis!
Sudoku Sidebar
Play Sudoku on Sidebar anytime in your browser! even offline!
Sidenotes
Simple notes for your Opera sidebar
Black Menu for Google™
The easiest access to the Google universe
Free File Sender
Free file transfer
Page Sidebar | Open any page in side panel
Effortlessly open any website in your web browser's sidebar – streamline your workflow instantly!
Web Panel
Navigate to websites in the sidebar.
Google Messages for Opera Sidebar
This Add-On allows you to send text messages from your Opera Browser, to anyone you want.
Bible-WebApp
This widget uses Logos Bible Software's Biblia.com Bible API service to get the Bible text
Sudoku v2
Play Sudoku from sidebar anytime even offline
Twitter Lite Sidebar (Unofficial)
Access Twitter Lite through Opera Sidebar. This is an UNOFFICIAL extensions.
Bing Translate
Easily access Bing Translate from Opera's sidebar
Simple Notes
Simple notes in a panel, with a context menu item to copy text to a note.
Bookmarks Manager and Viewer
An elegant bookmark manager with fuzzy search and more