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Programs

Preferences > Advanced > Programs

Press Page Down and Page Up to switch slides

Choose which programs Opera should use to handle specific protocols.

Protocol manager

You can create your own list of programs to launch when executing particular protocols in Opera. The default list includes:

Protocol	Purpose
mailto	Choose which application Opera should use for email; Opera's own built-in client, the default email client on your computer, or a specific other email client.

Source viewer

The source viewer is the program you want to launch when you select View > Source or press ⌘+U to see the source of a webpage.

By default, Opera will use its own built-in source viewer.

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