How to make Opera your default Browser

Making Opera your default browser under Windows, Mac OS X and Linux


The second time you run Opera, it will start displaying a dialog asking if you want Opera to be your default browser. Even if you have previously canceled this dialog, you can change the setting by doing the following:

  1. Go to ToolsPreferencesAdvancedPrograms
  2. Tick the checkbox for "Check if Opera is default browser on startup".
  3. Next time you start Opera, answer "Yes" when the dialog asks you if you want Opera to be the default browser on your computer.

Mac OS X

You can set Opera as your default browser on your Macintosh by doing the following:

  1. Open Safari.
  2. In the Safari menu, select PreferencesGeneral.
  3. Under "Default Web Browser", select Opera.

Note: On Mac OS X 10.2, you can also select a default browser using System PreferencesInternetWebDefault Web Browser.


For the two major desktop environments, the easiest ways of changing the default system Web browser to Opera are:


  1. In Gnome's System menu, select PreferencesPreferred Applications
  2. On the Web browser tab, replace the name of the current default browser with Opera.
  3. Be sure to leave the " %s" in the browser name field for Opera to be able to launch files passed by other applications directly.


  1. Open KDE's control center.
  2. Go to File Associations
  3. Add Opera as default application for the file types you want to launch directly in the browser, for example text/html.

Related software and links:

Opera browser icon

Opera browser    Microsoft Windows platform
A popular iInternet web browser and communiation suite

Opera browser for Linux icon

Opera browser for Linux    Linux/Unix platform
Linux version of popular web browser

Opera browser for Mac icon

Opera browser for Mac    Apple macOS / Mac OS X platform
A free web browser and Internet suite


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