Пашырэньні
Google Messages Sidebar
Access to Google Messages website on the sidebar.
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!
Bookmarks by the Side
A simple bookmarks sidebar.
PageExpand
All Image Download. Image Zoom. Expand Thumbnail and Audio and Video. Expand the short URL. Override Referer. Extend BBS. etc...
TickTick for Opera Sidebar (Unofficial Extension)
TickTick for Opera Sidebar. Unofficial 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.
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
GTasks Sidebar
Google Tasks on sidebar (not official)
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.
ICQ for Sidebar
Run ICQ Web in Sidebar
Techmeme Sidebar
Browse technology news on Techmeme in the sidebar.
Monthly Prayers Timetable
Islamic Monthly Prayers Timetable with HTML5 localStorage
Fraction Generator
Generate Fractions for copy to clipboard
GETTR Sidebar
Bring your news feed from the free speech social media platform gettr.com to the Opera sidebar for quick access.
Minúta po minúte
Minúta po minúte Denníka N
Simple Bookmark Sidebar
This extension shows your bookmarks in Opera's sidebar.
Quick History Redux
A Redux (bug fix) for gucio1007's "Quick History". It shows your browsing history in the browser sidebar.
CalLite CRM
CalLite CRM - Monitor Plugin
Gus EDT Extension
Extension pour utiliser le Gus-Edt
Sidebar Covid Tracker
Simple Covid Tracker for Sidebar based of https://www.worldometers.info/coronavirus/
TollSjekk
TollSjekk
InoReader Sidebar
Mobile version Inoreader.com on sidebar (not official)
Workspace Tab Counter
A tab counter specifically for GX, which counts tabs per workspace too.
The Stories (sidebar edition)
Smart and beautiful tool for keeping links. Create a story for every ocasion!
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.
Landmarks
Allows you to navigate a web page via WAI-ARIA landmarks, using the keyboard or a pop-up menu.