Browser pop-ups alerting you that you need to update Adobe Flash have become common and are an unreliable way to update Flash. Updating via browser pop-ups is not recommended as you will likely install adware in the process. The tell-tale signs of adware installation are changes to your home or search page. If you receive a browser pop-up with an Adobe Flash update, it is recommended that you close the browser tab or the browser.
Installing Adobe Flash Updates on a Windows Machine
Please note that Adobe Flash updates on Windows machines, starting with Windows 8, are handled through the operating system as Windows updates.
Installing Adobe Flash Updates on a Mac OS
Go to:
Click Adobe Flash Player (located at the bottom left of the “System Preferences” window):
Next, click the Updates tab.
Please note that the NPAPI plug-in is for Safari and the PPAPI plug-in is for Chrome. It’s okay not to have both installed, but check via the Check Now button for updates on what is installed.
If no updates are available, you will receive the following message:
If an update is available, click Yes, and follow the prompts to download and install, which involve double-clicking and following the prompts from your browser downloads.
For more information, please see:
- https://forums.adobe.com/thread/2179308
- https://www.macobserver.com/tips/quick-tip/macos-installing-flash-updates-safe-way/