Extensions
Tab Sidebar
A sidebar extension for tab management.
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.
ICQ for Sidebar
Run ICQ Web in Sidebar
Monthly Prayers Timetable
Islamic Monthly Prayers Timetable with HTML5 localStorage
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.
Site Settings Sidebar
Site specific settings on your sidebar.
MightyV Sidebar
Follow your favorite TV show. For Opera 29+ only.
Simple Vertical Tabs
Simple Vertical Tabs
TollSjekk
TollSjekk
InoReader Sidebar
Mobile version Inoreader.com on sidebar (not official)
The Stories (sidebar edition)
Smart and beautiful tool for keeping links. Create a story for every ocasion!
TaggingNotes
Adds notes managed by tagging without hierarchized tree to sidebar.
Quick History Redux
A Redux (bug fix) for gucio1007's "Quick History". It shows your browsing history in the browser sidebar.
KJMZ DA BLAZE
Listen KJMZ DA BLAZE Radio with Opera Browser.
Minúta po minúte
Minúta po minúte Denníka N
Techmeme Sidebar
Browse technology news on Techmeme in the sidebar.
Blendup
A tool for web developers to preview blend modes on different page elements.