Extensions
Todoist sidebar(Unofficial)
Opens Todoist(https://todoist.com) in the sidebar. This is an unoffical extension.
PageExpand
All Image Download. Image Zoom. Expand Thumbnail and Audio and Video. Expand the short URL. Override Referer. Extend BBS. etc...
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.
Sidebar for Google™ Search
Easy Access to Google search via Sidebar UI
ICQ for Sidebar
Run ICQ Web in Sidebar
2048 Mini game
The game 2048
Free File Sender
Free file transfer
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).
Simple Vertical Tabs
Simple Vertical Tabs
Simple Bookmark Sidebar
This extension shows your bookmarks in Opera's sidebar.
Browse++ Sidebar
Utilities for even more powerful web browsing. Search all open tabs, retrieve previously closed tabs, and make notes.
GTasks Sidebar
Google Tasks on sidebar (not official)
Goldfishka
Monthly Prayers Timetable
Islamic Monthly Prayers Timetable with HTML5 localStorage
Sidebar Todo
Minimalistic todo extension for your sidebar
Side Chat.
The best way to share things well surfing the web - Simplest possible way.
Bible-WebApp
This widget uses Logos Bible Software's Biblia.com Bible API service to get the Bible text
Site Settings Sidebar
Site specific settings on your sidebar.
Prayer times | مواقيت الصلاة.
معرفة مواقيت الصلاة
Hackernews Sidebar
Loads up Dharmesh Patels's excellent Web App for Hackernews on the Sidebar
The History Panel
An extension that puts the browser history in the sidebar, sorted by date.
TaggingNotes
Adds notes managed by tagging without hierarchized tree to sidebar.
Luminous: JavaScript events blocker
An experimental extension to identify, analyze and block code execution and event collection through JavaScript in your browser.
Quick History Redux
A Redux (bug fix) for gucio1007's "Quick History". It shows your browsing history in the browser sidebar.
TollSjekk
TollSjekk
Radioigor side
The sidebar with all the Radioigor and Videoigor music channels.
The Stories (sidebar edition)
Smart and beautiful tool for keeping links. Create a story for every ocasion!
InoReader Sidebar
Mobile version Inoreader.com on sidebar (not official)
Techmeme Sidebar
Browse technology news on Techmeme in the sidebar.
Blendup
A tool for web developers to preview blend modes on different page elements.
Help on Social (#gHelp) Sidebar
Access to Help on Social (#gHelp) on the sidebar.