Mga extension
ChessGrow
Give easy access to ChessGrow from sidebar.
Free File Sender
Free file transfer
SimpleExtManager
A simple menu to enable, disable and access options of extensions.
Monthly Prayers Timetable
Islamic Monthly Prayers Timetable with HTML5 localStorage
PageExpand
All Image Download. Image Zoom. Expand Thumbnail and Audio and Video. Expand the short URL. Override Referer. Extend BBS. etc...
Browse++ Sidebar
Utilities for even more powerful web browsing. Search all open tabs, retrieve previously closed tabs, and make notes.
TickTick for Opera Sidebar (Unofficial Extension)
TickTick for Opera Sidebar. Unofficial Extension
ICQ for Sidebar
Run ICQ Web in Sidebar
GTasks Sidebar
Google Tasks on sidebar (not official)
Simple Bookmark Sidebar
This extension shows your bookmarks in Opera's sidebar.
Luminous: JavaScript events blocker
An experimental extension to identify, analyze and block code execution and event collection through JavaScript in your browser.
Sidebar Covid Tracker
Simple Covid Tracker for Sidebar based of https://www.worldometers.info/coronavirus/
Simple Vertical Tabs
Simple Vertical Tabs
Site Settings Sidebar
Site specific settings on your sidebar.
Quick History Redux
A Redux (bug fix) for gucio1007's "Quick History". It shows your browsing history in the browser sidebar.
TaggingNotes
Adds notes managed by tagging without hierarchized tree to sidebar.
Workspace Tab Counter
A tab counter specifically for GX, which counts tabs per workspace too.
Fraction Generator
Generate Fractions for copy to clipboard
Hackernews Sidebar
Loads up Dharmesh Patels's excellent Web App for Hackernews on the Sidebar
SunBible
A beautiful way to read, study, and memorize the Bible
Techmeme Sidebar
Browse technology news on Techmeme in the sidebar.
InoReader Sidebar
Mobile version Inoreader.com on sidebar (not official)
TollSjekk
TollSjekk
Landmarks
Allows you to navigate a web page via WAI-ARIA landmarks, using the keyboard or a pop-up menu.
JxArşiv | Araçlar
Currency, Meter, Square, VAT, Percentage, Letter, Word Count, Age Calculation and Archives ...
Gus EDT Extension
Extension pour utiliser le Gus-Edt
GETTR Sidebar
Bring your news feed from the free speech social media platform gettr.com to the Opera sidebar for quick access.
KJMZ DA BLAZE
Listen KJMZ DA BLAZE Radio with Opera Browser.
Minúta po minúte
Minúta po minúte Denníka N
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.