Note: The Flash auto-update mechanism may notify you periodically about available Flash updates. See About Updating Adobe Flash Player for more information.

To update to the latest Flash Player version:

1. Using Firefox, go to the Adobe Flash Player download page.
2. Click the Agree and install now button. You will be prompted to allow the website to install software on your computer.
3. Click Allow to begin installing the Adobe Download Manager. The Software installation window will appear.
   
   
4. In the Software Installation window, click Install Now.
   
   
5. After the installation finishes, the Firefox Add-ons window will appear. Click Restart Firefox.
   
   
6. After Firefox restarts, the Adobe Download Manager window will appear. It will download the update to Flash. When it is finished, click Close Download Manager.
   
   

The new version of Flash will be installed after the Adobe Download Manager window closes. The Adobe Download Manager extension and program will be uninstalled automatically the next time you restart Windows.

To update to the latest Flash Player version:

1. Go to Adobe's Flash download page and follow the instructions to download the latest update of Flash Player.
2. Run the DMG file to mount the disk image.
3. In the Finder, select the Flash Player disk image, and run Adobe Flash Plyer.pkg, to run the installer.
4. Restart Firefox.

For more information, read Adobe's Flash Player installation instructions.

Uninstalling Flash

For instructions on how to uninstall Flash, read this article on Adobe's website.

Flash works in Internet Explorer but not in Firefox

There are two different types of Flash Players: An ActiveX version for Internet Explorer and a plugin version for Firefox and other browsers. If you want Flash to work in Firefox you must install the plugin version, as explained above.

Flash does not work properly and/or will not update

Sometimes it is possible for Firefox to have two different versions of the Flash plugin installed. This can cause the following types of problems:

• Flash content does not work, acts strangely, or causes errors. (This is due to an old version of Flash being used to play content that requires the latest version of Flash.)
• Installation of the latest version of Flash apparently fails, even though the Flash installer returned no errors and seemed to work fine. (The old version of Flash has priority over the new version, and the Flash installer failed to remove the old version.)

To find out how many versions of Flash you have installed:

1. At the top of the Firefox window, click the Tools menu and select Add-ons. The Add-ons window will open.
2. In the Add-ons window, select the Plugins panel to display a list of installed plugins.
3. Count how many times the "Shockwave Flash" heading appears.

If the "Shockwave Flash" heading appears more than once, then you have more than one version of the Flash plugin installed. In this case you must remove one copy of the Flash plugin, and perhaps reinstall the latest version. To do this:

1. Exit Firefox. From the menu at the top of the Firefox window, select File and then select the Exit menu item.
2. Find your Firefox installation folder. (Typically C:\Program Files\Mozilla Firefox\)
3. Navigate into the \plugins\ folder.
4. Delete the file called NPSWF32.dll.
5. Start Firefox.
6. Open the Add-ons window, and select the Plugins panel.
7. Ensure only one “Shockwave Flash” heading appears.
8. Visit the Flash Test Page to ensure you are on the latest version. See the Testing Flash section above.