All Image Download. Image Zoom. Expand Thumbnail and Audio and Video. Expand the short URL. Override Referer. Extend BBS. etc...
Opens Todoist(https://todoist.com) in the sidebar. This is an unoffical extension.
Manage your tabs in the sidebar!
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).
Too many open tabs? Manage your tabs, regain your sanity and improve your browsing experience with tabzen
A sidebar extension for tab management.
The best way to share things well surfing the web - Simplest possible way.
Simple notes in a panel, with a context menu item to copy text to a note.
ICQ for Sidebar
Run ICQ Web in Sidebar
Site Settings Sidebar
Site specific settings on your sidebar.
2048 Mini game
The game 2048
Simple Bookmark Sidebar
This extension shows your bookmarks in Opera's sidebar.
This widget uses Logos Bible Software's Biblia.com Bible API service to get the Bible text
Prayer times | مواقيت الصلاة.
معرفة مواقيت الصلاة
Minimalistic todo extension for your sidebar
Free File Sender
Free file transfer
Simple Vertical Tabs
Simple Vertical Tabs
Loads up Dharmesh Patels's excellent Web App for Hackernews on the Sidebar
Monthly Prayers Timetable
Islamic Monthly Prayers Timetable with HTML5 localStorage
Mobile version Inoreader.com on sidebar (not official)
Utilities for even more powerful web browsing. Search all open tabs, retrieve previously closed tabs, and make notes.
Google Tasks on sidebar (not official)
The sidebar with all the Radioigor and Videoigor music channels.
The History Panel
An extension that puts the browser history in the sidebar, sorted by date.
Follow your favorite TV show. For Opera 29+ only.
Browse technology news on Techmeme in the sidebar.
Help on Social (#gHelp) Sidebar
Access to Help on Social (#gHelp) on the sidebar.
Adds notes managed by tagging without hierarchized tree to sidebar.
The Stories (sidebar edition)
Smart and beautiful tool for keeping links. Create a story for every ocasion!