1. Access the Adobe website at https://get.adobe.com/flashplayer/.

2. Click Need Flash Player for a different computer? link.

3. In Step 1 Select an operating system, pick the one matching your system.

4. In Step 2 Select a version, pick "FP XX for Opera and Chromium - PPAPI".

5. Click Download now button.

6. Perform the installation as instructed by Adobe (steps not provided in this article as they might change).