Ekstenzije
Tree Tabs
Manage your tabs in the sidebar!
uMatrix
Point & click to forbid/allow any class of requests made by your browser. Use it to block scripts, iframes, ads, facebook, etc.
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
SimpleExtManager
A simple menu to enable, disable and access options of extensions.
Google Messages for Opera Sidebar
This Add-On allows you to send text messages from your Opera Browser, to anyone you want.
ChessGrow
Give easy access to ChessGrow from sidebar.
Monthly Prayers Timetable
Islamic Monthly Prayers Timetable with HTML5 localStorage
Free File Sender
Free file transfer
Browse++ Sidebar
Utilities for even more powerful web browsing. Search all open tabs, retrieve previously closed tabs, and make notes.
Simple Vertical Tabs
Simple Vertical Tabs
ICQ for Sidebar
Run ICQ Web in Sidebar
CalLite CRM
CalLite CRM - Monitor Plugin
Sidebar Covid Tracker
Simple Covid Tracker for Sidebar based of https://www.worldometers.info/coronavirus/
Site Settings Sidebar
Site specific settings on your sidebar.
Simple Bookmark Sidebar
This extension shows your bookmarks in Opera's sidebar.
TollSjekk
TollSjekk
Fraction Generator
Generate Fractions for copy to clipboard
Hackernews Sidebar
Loads up Dharmesh Patels's excellent Web App for Hackernews on the Sidebar
Techmeme Sidebar
Browse technology news on Techmeme in the sidebar.
KJMZ DA BLAZE
Listen KJMZ DA BLAZE Radio with Opera Browser.
Workspace Tab Counter
A tab counter specifically for GX, which counts tabs per workspace too.
Landmarks
Allows you to navigate a web page via WAI-ARIA landmarks, using the keyboard or a pop-up menu.
Quick History Redux
A Redux (bug fix) for gucio1007's "Quick History". It shows your browsing history in the browser sidebar.
GTasks Sidebar
Google Tasks on sidebar (not official)
InoReader Sidebar
Mobile version Inoreader.com on sidebar (not official)
SunBible
A beautiful way to read, study, and memorize the Bible
Minúta po minúte
Minúta po minúte Denníka N
Blendup
A tool for web developers to preview blend modes on different page elements.
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.