Open your Opera Web browser.
Examine the "System Requirements" page at Adobe's website to determine if your operating system can run the latest version of Flash. (See Resources for link.)
Visit Adobe's "Install Adobe Flash Player" page and download the latest version of the Flash Player for Opera 9.6 if your computer meets the minimum system requirements. (See Resources for link.) Press the "Agree and install now" button. Follow the on-screen prompts to complete the installation. Skip to the next step if your system does not meet the minimum system requirements.
Visit Adobe's "Archived Flash Player Versions" page if your computer does not meet the system requirements for the latest version of Flash. (See Resources for link.) Download an older version of Flash, such as Flash 9, and follow the on-screen prompts to complete the installation.