We are not able to guarantee that Lumosity will function flawlessly on all systems. Newer technologies tend to offer better performance, so we try to stay up-to-date with the newest versions of each system, and older versions must eventually become unsupported. To optimize your web experience, we strongly recommend using the latest versions of your operating system, browser, and Adobe Flash Player. Chrome and Edge will update Flash automatically.
Next, click on your browser for instructions on updating:
Click the "Firefox" menu in the top right corner, click the help icon (?) at the bottom of the menu, and then About Firefox. Updates will automatically download. Click Restart Firefox to Update.
Click the Firefox menu, then About Firefox. Updates will automatically download. Click Restart Firefox to Update.