Mga extension
Number of search results for 'google': 240
Serpstat Website SEO Checker
Instantly check your website's SEO, analyze competitors and get advantage of powerful search analytics in one place.
CMeter
Activates Content Meter library for web-pages.
TabKiller
Opera extension to close tab duplicates and search tabs.
URL Shortener
Shortens URLs with various services.
Fastest Gmail Notifier
The easiest way to open your Gmail inbox while you browse internet
Play T-Rex Dinosaur Game Online
Play theT-Rex Dinosaur game enjoy the “No Internet game T Rex” now.
Set password for your browser ( Opera lock )
This extension will allow users to set password for the browser to avoid unauthorized access. Prompts for password on opera startup
Tampermonkey
Change the web at will with userscripts