Sambungan
GIKRadio
The extension allows you to listen GIKRadio directly in the browser. Walk on the Internet and listen good music! Request Song from sidebar (press CTRL+SHIFT+S).
Todoist sidebar(Unofficial)
Opens Todoist(https://todoist.com) in the sidebar. This is an unoffical extension.
Tree Tabs
Manage your tabs in the sidebar!
Prayer times | مواقيت الصلاة.
معرفة مواقيت الصلاة
Side Chat.
The best way to share things well surfing the web - Simplest possible way.
Tab Sidebar
A sidebar extension for tab management.
Luminous: JavaScript events blocker
An experimental extension to identify, analyze and block code execution and event collection through JavaScript in your browser.
2048 Mini game
The game 2048
tabzen
Too many open tabs? Manage your tabs, regain your sanity and improve your browsing experience with tabzen
Simple Notes
Simple notes in a panel, with a context menu item to copy text to a note.
Simple Bookmark Sidebar
This extension shows your bookmarks in Opera's sidebar.
ICQ for Sidebar
Run ICQ Web in Sidebar
Free File Sender
Free file transfer
Monthly Prayers Timetable
Islamic Monthly Prayers Timetable with HTML5 localStorage
Site Settings Sidebar
Site specific settings on your sidebar.
Bible-WebApp
This widget uses Logos Bible Software's Biblia.com Bible API service to get the Bible text
Simple Vertical Tabs
Simple Vertical Tabs
Sidebar Todo
Minimalistic todo extension for your sidebar
The History Panel
An extension that puts the browser history in the sidebar, sorted by date.
Browse++ Sidebar
Utilities for even more powerful web browsing. Search all open tabs, retrieve previously closed tabs, and make notes.
MightyV Sidebar
Follow your favorite TV show. For Opera 29+ only.
Goldfishka
Hackernews Sidebar
Loads up Dharmesh Patels's excellent Web App for Hackernews on the Sidebar
GTasks Sidebar
Google Tasks on sidebar (not official)
Help on Social (#gHelp) Sidebar
Access to Help on Social (#gHelp) on the sidebar.
InoReader Sidebar
Mobile version Inoreader.com on sidebar (not official)
Radioigor side
The sidebar with all the Radioigor and Videoigor music channels.
TollSjekk
TollSjekk
Freelyshout Lite On Sidebar
This is an unoffical extensions. Freelyshout for Opera Sidebar. Freelyshout is social media platform.
Techmeme Sidebar
Browse technology news on Techmeme in the sidebar.
The Stories (sidebar edition)
Smart and beautiful tool for keeping links. Create a story for every ocasion!
Blendup
A tool for web developers to preview blend modes on different page elements.