Extensions
Google Messages Sidebar
Access to Google Messages website on the sidebar.
ChessGrow
Give easy access to ChessGrow from sidebar.
Simple Notes
Simple notes in a panel, with a context menu item to copy text to a note.
Fraction Generator
Generate Fractions for copy to clipboard
Hackernews Sidebar
Loads up Dharmesh Patels's excellent Web App for Hackernews on the Sidebar
PageExpand
All Image Download. Image Zoom. Expand Thumbnail and Audio and Video. Expand the short URL. Override Referer. Extend BBS. etc...
TollSjekk
TollSjekk
Twitter Lite Sidebar (Unofficial)
Access Twitter Lite through Opera Sidebar. This is an UNOFFICIAL extensions.
Category Tabs for Google Keep™
Better organise your Google Keep notes
Language toolkit
The missing language interface.
Browser Images
Download images and videos from open ArtStation, DeviantArt and Pinterest tabs.
Morse Code Translator
Translate text to Morse code and back.
Aromagic
Sync your dōTERRA genealogy and order data with Aromagic
SimpleExtManager
A simple menu to enable, disable and access options of extensions.
Bookmarks by the Side
A simple bookmarks sidebar.
Tree Tabs
Manage your tabs in the sidebar!
Bible-WebApp
This widget uses Logos Bible Software's Biblia.com Bible API service to get the Bible text
calcatom
Smart scientific calculator with live currency conversion in your browser
TickTick for Opera Sidebar (Unofficial Extension)
TickTick for Opera Sidebar. Unofficial Extension
Monthly Prayers Timetable
Islamic Monthly Prayers Timetable with HTML5 localStorage
Simple Vertical Tabs
Simple Vertical Tabs
GeoKW
Zaznacz lub wpisz numer KW, aby uzyskać informacje o działkach w tej księdze.
Shortcuts for Google™
Choose from 1000+ Google™ shortcuts to show up as buttons in a space-saving popup
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
Navvatart VerTabs
Modern vertical tab manager with multi-group support, drag and drop, and smooth animations. By Navvatart
Black Menu for Wikipedia
Easy access to the Wikipedia universe
Browse++ Sidebar
Utilities for even more powerful web browsing. Search all open tabs, retrieve previously closed tabs, and make notes.
Sidebar Covid Tracker
Simple Covid Tracker for Sidebar based of https://www.worldometers.info/coronavirus/
GTasks Sidebar
Google Tasks on sidebar (not official)
CalLite CRM
CalLite CRM - Monitor Plugin
KJMZ DA BLAZE
Listen KJMZ DA BLAZE Radio with Opera Browser.
ICQ for Sidebar
Run ICQ Web in Sidebar