ColorHexa - Color Information and Conversion
Color tool converting and providing information about any color.
The Old Reader extension
This extension provides a toolbar icon to notify you about unread items in your The Old Reader account.
Astronomy picture of the day
This extension shows the Astronomy Picture Of The Day in speeddial.
G2reader - A Google Reader Replacement
IPv4 to IPv6 Converter
Convert Internet Protocol v4 (IPv4) address to Internet Protocol v6 (IPv6) address using different methods.
Saves references to Zotero from Chrome and Opera
Base64 Encode and Decode
Quickly Encode & Decode Base64 strings
Makes Opera 15 scroll like in Opera 12
My IP Address
Your current public IP address, right in your speed dial.
The Old Reader Notifier
Notifies you about unread items in your The Old Reader account.
User-Agent Switcher is a quick and easy way to switch between user-agents.
Open in (background) tab
Extends the context menu of selected text to open an URL in a new tab.
The official Lavender Town's Website widget, with basic shortcuts and links to the site.
Live HTTP Headers
Monitor all HTTP/HTTPs traffic from your browser.
Quickly view the HTTP headers of the current tab.
This extension lets you easy find the most common Opera actions.
Whats My Info
Shows your IP address and other useful info.
Send free SMS text messages w/o registration
Slim Scroll bar
Modern & slim looks for browser scroll bars!
EX.UA/FS.UA без рекламы
Allows to disable the ad units: in the top, between the elements of the list, at the homepage, as well as on the search pages.
Greasemonkey-like mods, but quicker to tweak. Create and apply your own synced tweaks to web pages
Snap Usage Monitor
Easily monitor your Snap data usage.
4chan X Name Sync
Enables names on 4chan's forced anon boards. Requires 4chan X.
Innovative anonymous chat, try it now for free and explore the Alien
The most popular radio stations in France.
The most popular radio stations in the UK
OMG! Ubuntu! for Opera
The official OMG! Ubuntu! extension
Browse JSON like you do it in Finder.
Notifier of unread articles for Feedly.