Leudachain
Simple Bookmark Sidebar
This extension shows your bookmarks in Opera's sidebar.
GETTR Sidebar
Bring your news feed from the free speech social media platform gettr.com to the Opera sidebar for quick access.
Simple Vertical Tabs
Simple Vertical Tabs
KJMZ DA BLAZE
Listen KJMZ DA BLAZE Radio with Opera Browser.
InoReader Sidebar
Mobile version Inoreader.com on sidebar (not official)
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.
Landmarks
Allows you to navigate a web page via WAI-ARIA landmarks, using the keyboard or a pop-up menu.