拡張機能
uBlock Origin
高効率ブロッカーついに登場。CPU とメモリーに負担をかけません。
Translator
Translate selected or entered text
Video Downloader VeeVee
ビデオ ダウンローダー VeeVee – インターネットからビデオをダウンロードします。
Bitwarden Password Manager
自宅、職場、または外出先でも、Bitwarden はすべてのパスワード、パスキー、機密情報を簡単に保護します。
Sidebar for YouTube™
Easy Access to YouTube via Sidebar UI
Video Hunter Downloader
ビデオ ダウンローダーVideo Hunter – インターネットからビデオをダウンロードします。
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 YouTube™
Simple access to YouTube using the sidebar UI
Sidebar Calc
Sidebar Calculator - Fast and Simple
Note Sidebar
Simple note sidebar which can be used to write a note, record thoughts, to-do list, meeting notes, etc.
Sidebar for Google™ Translate
Easy Access to Google Translate via 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
Vertical Tabs
Manage your tabs in the sidebar!
Sidenotes
Simple notes for your Opera 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.
Twitter Lite Sidebar (Unofficial)
Access Twitter Lite through Opera Sidebar. This is an UNOFFICIAL extensions.
Simple Notes
Simple notes in a panel, with a context menu item to copy text to a note.
Page Sidebar | Open any page in side panel
Effortlessly open any website in your web browser's sidebar – streamline your workflow instantly!
Bible-WebApp
This widget uses Logos Bible Software's Biblia.com Bible API service to get the Bible text
Bookmarks Manager and Viewer
An elegant bookmark manager with fuzzy search and more
Sudoku v2
Play Sudoku from sidebar anytime even offline
Google Messages for Opera Sidebar
This Add-On allows you to send text messages from your Opera Browser, to anyone you want.
uMatrix
Point & click to forbid/allow any class of requests made by your browser. Use it to block scripts, iframes, ads, facebook, etc.