Extensions
PageExpand
All Image Download. Image Zoom. Expand Thumbnail and Audio and Video. Expand the short URL. Override Referer. Extend BBS. etc...
uMatrix
Point & click to forbid/allow any class of requests made by your browser. Use it to block scripts, iframes, ads, facebook, etc.
Tabsets.net
Use the tabsets.net browser extension to safely keep track all your tabs and links in the Side Panel, locally or in the cloud
Tree Tabs
Manage your tabs in the sidebar!
SimpleExtManager
A simple menu to enable, disable and access options of extensions.
Bookmarks by the Side
A simple bookmarks sidebar.
Google Messages Sidebar
Access to Google Messages website on the sidebar.
ChessGrow
Give easy access to ChessGrow from sidebar.
Navvatart VerTabs
Modern vertical tab manager with multi-group support, drag and drop, and smooth animations. By Navvatart
TickTick for Opera Sidebar (Unofficial Extension)
TickTick for Opera Sidebar. Unofficial Extension
GTasks Sidebar
Google Tasks on sidebar (not official)
Monthly Prayers Timetable
Islamic Monthly Prayers Timetable with HTML5 localStorage
Simple Vertical Tabs
Simple Vertical Tabs
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.
CalLite CRM
CalLite CRM - Monitor Plugin
SunBible
A beautiful way to read, study, and memorize the Bible
Fraction Generator
Generate Fractions for copy to clipboard
Black Menu for Wikipedia
Easy access to the Wikipedia universe
Sidebar Covid Tracker
Simple Covid Tracker for Sidebar based of https://www.worldometers.info/coronavirus/
ICQ for Sidebar
Run ICQ Web in Sidebar
InoReader Sidebar
Mobile version Inoreader.com on sidebar (not official)
Gus EDT Extension
Extension pour utiliser le Gus-Edt
TollSjekk
TollSjekk
GETTR Sidebar
Bring your news feed from the free speech social media platform gettr.com to the Opera sidebar for quick access.
Landmarks
Allows you to navigate a web page via WAI-ARIA landmarks, using the keyboard or a pop-up menu.
Workspace Tab Counter
A tab counter specifically for GX, which counts tabs per workspace too.
Minúta po minúte
Minúta po minúte Denníka N
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.