Some cool extensions for Opera now, which anyone can post about here, as it was decided a little while back not to start a separate Opera extensions thread.
Download any video as 240p*(FLV), 360p*(FLV,MP4,WebM), 480p*(FLV), 720p*(MP4,WebM), 1080p*(MP4) and Original*(MP4).
Ghostery sees the "invisible" web, detecting trackers, web bugs, pixels, and beacons placed on web pages by Facebook, Google Analytics, and over 400 other ad networks, behavioral data providers, web publishers - all companies interested in your activity.
Translate typed text, selected text, the active page.
This extension uses Google Translate, Bing Translator, Promt Translator(Yandex), Pragma Translator or Babylon Dictionaries (optional).
I've been using these three for some time, and so far, I can't fault any of them.
Edited by DennisD, 02 August 2012 - 03:21 PM.
Moved from the "Which Browser" thread.