Articles:

• Extension developer interview: coffee with the Adblock Plus team

  Wednesday, October 23, 2013

• Themes in Opera 18+

  Thursday, October 17, 2013

• Extension developer interview: coffee with the WOT team

  Tuesday, September 17, 2013

• Extension developer interview: coffee with the Disconnect team

  Tuesday, August 27, 2013

• Extension developer interview: coffee with the cottonTracks team

  Tuesday, July 2, 2013

• Major changes in Opera's extensions infrastructure

  Tuesday, May 28, 2013

• Extensions come to Opera Mobile

  Tuesday, April 3, 2012

• Opera Mobile Emulator for desktop

  Wednesday, May 25, 2011

• An introduction to meta viewport and @viewport

  Tuesday, March 22, 2011

• Documentation for Opera 11 & 12 extensions

  Thursday, December 16, 2010

• Opera extensions developer workflow

  Monday, November 22, 2010

• Getting started with Opera extensions

  Thursday, October 21, 2010

• The Opera Mobile emulator: Mobile development from the comfort of your desktop

  Thursday, April 22, 2010

• Opera Mobile 10 developer’s introduction

  Tuesday, March 16, 2010

• Opera Widgets go mobile

  Thursday, February 18, 2010

• Optimizing widget graphics for mobile and devices

  Tuesday, February 9, 2010

• Opera Mobile 10 beta 2 developer’s introduction

  Wednesday, December 2, 2009

• Seven Web Fonts showcases

  Tuesday, September 1, 2009

• Changes in Opera’s user agent string format

  Wednesday, May 27, 2009

• Technology preview: Gears-enabled Opera Mobile 9.5

  Friday, February 20, 2009