The easiest way to access different search engines.
Diigo Web Collector - Capture and Annotate
Bookmark, Archive, Screenshot & Markup - All-In-One Web Collector, must-have research tool
Custom menu allows the user to create a menu to access various network resources.
Adds a toolbar button with various web developer tools. The official port of the Web Developer extension for Firefox.
YouTube HTML5 unblocker
View any YouTube video in HTML5, even those that require flash!
All your favorite radio stations in one extension.
Listen your favorite Internet radio station!
1800PocketPC News Stream straight from your Opera toolbar.
Convert among Celsius, Fahrenheit, Kelvin, Rankine & Reamur. Create direct link to any of your conversions
Detect humans.txt for the current web and show the content. (What is humans.txt? http://humanstxt.org)
Local pass store
A password manager with local storage, a bit like old WAND.
Shows you what kind of link you are going to click on.
Translate, learn and train words from foreign languages
Outlook.com Speed Dial
New Outlook.com Speed Dial extension shows you if you have new messages in your Outlook.com account when you're signed in.
Comprehensive site information and phishing protection when browsing the web
Switch tabs easily with keyboard
Removes garbage like "utm_source" from URLs
Your public IP address and other tracking info
Special window, which appears on selecting a text, with helpfull icons for searching, translating and more!
Track news about Edward Snowdon (or anything you like) w/o refreshing!
Utilities for even more powerful web browsing. Search all open tabs, retrieve previously closed tabs, and make notes.
Write your email in Markdown, then make it pretty.
The Old Reader add feed extension
InstaNote Fast Creator
Create fast notes with a password, then edit it in a new tab. Simple and fast.
Tic Tac Toe 5 in a row
Play tic-tac-toe versus computer or with friends over the Internet!
Simple Email Ad Blocker
Simple Gmail™ and Outlook Ad Blocker. Hides the Ads from your Inbox.
Time.is - exact time, any time zone
Online synchronized clock for Opera Speed Dial