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Flash Player Security Issues

Security flaws in Flash Player have been revealed recently. Although Adobe, the maker of the Flash Player browser plug-in, issues fixes promptly as security flaws are discovered, the makers of some web browsers (including, so far, Mozilla FireFox and Google Chrome) have blocked Flash player in some browser updates for this reason. The LearnLive Delivery platform (Capture, Connect) depends on Flash Player for both the student and presenter interfaces, and there is a small chance that end users may be affected by these blockages if they are using versions of the browsers that automatically block the Flash Player.

Flash Player Compatibility with Google Chrome and Mozilla Firefox

Both Google Chrome and Mozilla Firefox have begun blocking some versions of Flash player from loading on their browsers due to a security vulnerability in Flash Player.

If you experience this on Firefox, you may see a warning to the effect of “Flash Player Plugin between [some version number] and [another version number] has been blocked for your protection.”

If you experience this on Google Chrome, you may simply see a warning alerting you that the plug-in was blocked because it is out-of-date.

In either case, follow the steps below to remedy the situation.

Fix a Blocked Player on Mozilla Firefox:

  1. The blocked page will look something like the image below. Click on the "update" button to update the player.
  2. The Mozilla plug-ins page will look something like you see below.
  3. Note: if you do not see any plug-ins listed on this page, you may need to update your entire Firefox browser to a newer version before proceeding. If so, go to the Firefox "Help'menu, then click on "About Mozilla Firefox," and follow the instructions there for updating your browser.
  4. If your Flash Player needs updating, you will see it indicated as shown above. Click the "update" button to begin the update process.
  5. The link will take you to the Adobe website. Follow the instructions to download the new Flash Player.
  6. Follow the instructions on the Adobe site to download and install the latest version of Flash Player for Firefox.
  7. When you have completed this, re-start your browser and Flash should now run normally.

Fix a Blocked Player on Google Chrome:

Update your browser to the latest available version. On Google Chrome, the flash player is built into the browser and cannot be updated independently.

  1. Click the menu icon on the right corner of the browser, and select “About Google Chrome.”
  2. If your browser if up-to-date, you will see the statement and green checkmark below. If your browser needs updating, follow the instructions in that portion of the page.
  3. You may need to activate the flash plug-in manually. In the URL field of the browser, type “chrome://plugins”
  4. You will see a page that looks similar to the one shown below. If the Flash plugin is disabled, click the “enable” button.


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