Una gran alternativa al IE, ahora disponible de manera gratuita.

Opera 9 utiliza un nuevo formato de almacenaje para las cuentas de e-mail. El viejo correo no cambia de formato, pero el correo recibido en Opera 9 no será compatible con las versiones previas.

A un vistazo
* Bloqueo de contenido
* Ayuda de BitTorrent
* Widgets
* Editor del buscador
* Preferencias de sitio
* Instalador nuevo. Un paquete -- 30 idiomas
* Espectador de fuente integrado
* opera:config para configuración avanzada de los ajustes

**En el servidor alternativo esta el archivo para poner tu navegador Opera en español.

Que hay de nuevo:

Changes and improvements since Opera 10.00
User Interface
Added

* Opera Link button with dropdown menu on the status bar; access to Opera Link in the main menu moved to Tools

Improvements

* Updated the Opera Debian repository signing key in the .deb packages

Fixed

* Issue with Opera Turbo and plug-in placeholders
* Enabling Opera Turbo for the first time not showing the Opera Turbo information page
* Opera not synchronizing more than 9 Speed Dials
* Open instance of Opera not running when a laptop enters its wakeup stage
* Downloaded files with spaces not being opened
* Random instances of downloads not starting
* Problem when clicking the Accesskey menu
* Downloads sometimes not starting but just showing a progress bar

Mail, news, chat
Fixed

* Problem creating a new mail account
* Drafts sometimes missing after upgrading to Opera 10.00
* Follow/Ignore contact not working from the message header toolbar

Security
Fixed

* Fixed an issue where certain domain names could allow execution of arbitrary code, as reported by Chris Weber of Casaba Security ; see our advisory
* Fixed an issue where scripts can run on the feed subscription page, as reported by Inferno ; see our advisory

Miscellaneous
Fixed

* Custom changes to operaprefs not appearing when upgrading from a version older than Opera 10.00
* Issue of 100% CPU usage fixed by preventing and avoiding the filling up of message loop