Adds notes managed by tagging without hierarchized tree to sidebar.
Old school opera notes
The extension allows you to quickly save text notes on the sidebar of your browser.
Simple notes in a panel, with a context menu item to copy text to a note.
Nimbus Notes - The easiest way to taking notes and clip text/pictures from Web pages in Opera browser.
Save highlighted text for later to view. Highlight text and press (Ctrl + B) to save.
InstaNote Fast Creator
Create fast notes with a password, then edit it in a new tab. Simple and fast.
WizNote Web Clipper
The extension “Wiz Note” can help you to save the web content or the whole website in your own account.