Extensions
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).
PageExpand
All Image Download. Image Zoom. Expand Thumbnail and Audio and Video. Expand the short URL. Override Referer. Extend BBS. etc...
SimpleExtManager
A simple menu to enable, disable and access options of extensions.
Bookmarks Manager and Viewer
An elegant bookmark manager with fuzzy search and more
Luminous: JavaScript events blocker
An experimental extension to identify, analyze and block code execution and event collection through JavaScript in your browser.
Monthly Prayers Timetable
Islamic Monthly Prayers Timetable with HTML5 localStorage
ICQ for Sidebar
Run ICQ Web in Sidebar
GTasks Sidebar
Google Tasks on sidebar (not official)
Browse++ Sidebar
Utilities for even more powerful web browsing. Search all open tabs, retrieve previously closed tabs, and make notes.
Hackernews Sidebar
Loads up Dharmesh Patels's excellent Web App for Hackernews on the Sidebar
Simple Bookmark Sidebar
This extension shows your bookmarks in Opera's sidebar.
MightyV Sidebar
Follow your favorite TV show. For Opera 29+ only.
Site Settings Sidebar
Site specific settings on your sidebar.
TollSjekk
TollSjekk
InoReader Sidebar
Mobile version Inoreader.com on sidebar (not official)
Simple Vertical Tabs
Simple Vertical Tabs
TaggingNotes
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!
Quick History Redux
A Redux (bug fix) for gucio1007's "Quick History". It shows your browsing history in the browser sidebar.
Minúta po minúte
Minúta po minúte Denníka N
KJMZ DA BLAZE
Listen KJMZ DA BLAZE Radio with Opera Browser.
Blendup
A tool for web developers to preview blend modes on different page elements.
Techmeme Sidebar
Browse technology news on Techmeme in the sidebar.