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Opera Dragonfly

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Title: Opera Dragonfly  
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Subject: JavaScript, Opera Software, Internet Explorer Developer Tools, Operator YAPO, Nodeclipse
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Opera Dragonfly

Opera Dragonfly
Developer(s) Opera Software
Stable release 1.2012.12.14.1 / December 14, 2012 (2012-12-14)
Preview release 1.2012.12.14.1
Operating system Cross-platform
License Apache License 2.0[1]

Opera Dragonfly is a full-featured development and debugging tool integrated into the Opera web browser. It supports debugging JavaScript, viewing the DOM, monitoring network traffic, previewing resources, editing colors, etc. Opera Dragonfly also supports remote debugging, which allows using the features of Dragonfly to be used when debugging a mobile phone, TV, or another desktop computer.[2]

Using Opera Dragonfly for the first time requires an Internet connection to download Opera Dragonfly files. Then, Opera Dragonfly can be loaded offline from Opera's cache. Opera Dragonfly automatically updates to the latest version available, when connected to the Internet.

Opera Dragonfly is compatible with Presto 2.1 and later, specifically Opera Mobile 9.5 and above, Opera Desktop 9.5 and above, and Nintendo DS & Nintendo DSi Browser. The Scope transport protocol (STP) is used for communication between the Opera browser and Opera Dragonfly.[3]


Development of Opera Dragonfly started in May 2008. When the development started Opera Dragonfly was using the BSD license, but later on it was changed to the Apache License 2.0.[1]

On 21 September 2011, the Opera Dragonfly team announced that from now on releases will be more focused on improvements to individual components, e.g. the DOM inspector or the UI framework. As soon as a feature for a certain component has been implemented, it will be put on the experimental path for some initial testing. As part of the new release strategy, they are also switching over Opera Dragonfly to a new version scheme: .... [4]

See also


  1. ^ a b "Change of license from BSD license to Apache 2.0 license". 
  2. ^ "Opera Dragonfly Features". 
  3. ^ "Announcing release of Scope protocol specification". 
  4. ^ "Opera Dragonfly Blog » New fast release cycle". 
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