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Install Add-on (Extension)

  • Hello,

    I have a little question about extensions. Where can I install/add an extension, if it's not in the „official“ Opera Store? I have downloaded the extension from the website of the developer but cannot find where to install it in the Opera browser.


    Version: Opera 12.16 Build 1860 for Linux x86_64.

  • [Mod edit: off-topic post removed. Please search before posting and create your own thread on the correct section if you don't find the answer to your question.]

  • What happens if you double-click or right-click the .oex extension file and select "open with" Opera web browser? Or dragging and dropping it into Opera's window for instance?

    More info:


    If you attempt to install an extension from a site that is not listed in the "Trusted Websites" dialog under the "Extensions" tab, the installation will be blocked with a warning: "For your safety, you can only install extensions from or other trusted websites. Trusted websites are defined in the security preferences."

    Adding to the list of trusted websites

    To add a source to the list of "Trusted Websites", take the following steps:
    From the menu, go to Settings > Preferences > Advanced > Security.
    Click the "Trusted Websites" button.
    Choose the relevant tab: Extensions or Secure Internal Hosts
    Click "Add" and enter the web address of the site. You can also edit or delete sites in the list.


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