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  1. In the Safari app on your Mac, look for a placeholder on the page, such as “Plug-in missing” or “Click to use Plug-in”. Click the placeholder. Follow the onscreen instructions. To change plug-in blocking, choose Safari Preferences, click Websites, click the plug-in.
  2. Customize your browsing experience by getting Safari extensions from the Mac App Store. Get extensions to customize Safari on Mac. To browse the Safari User Guide, click Table of Contents at the top of the page. Download items from the web. Share or post webpages. Add passes to Wallet. Save part or all of a webpage. Print or create a PDF of.
  3. The latest version of the Flash plugin should perform better and crash less often. To check if Flash is up to date, visit Adobe's Flash Player Help page. If it says that Flash needs to be updated, install the latest version manually using the steps in the section above. Troubleshooting the Flash plugin.

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McDSP plug-ins can be found on popular audio workstations and live sound systems all over the world. Supported platforms include Pro Tools, Logic, Ableton Live, Digital Performer, Cubase, and VENUE. McDSP plug-ins are available in HD and Native versions. Install the Zoom Microsoft Outlook Plugin from Zoom; 64-bit PC or Mac (the Outlook plugin is an 64-bit application; if you're using a 32-bit system, consider using the Office 365 Add-In).macOS 10.15 Catalina does not support plug-ins, including the Microsoft Outlook Plugin for Zoom. Downloading the plugin.

In order to use the program, it needs to be purchased and activated first.

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Microsoft Silverlight is an already deprecated application framework used for writing and running rich internet applications. It can be likened to Adobe Flash. Its early versions centered on streaming media, while later ones supported multimedia, graphics, as well as animation. The latter also provided developers with support for CLI languages along with development tools.

Industry watchers were quick to observe Silverlight’s death as early as 2011. The following year, Silverlight fell out of favor and Microsoft deprecated it for HTML5 in Windows 8. Before 2015 ended, everybody knew that it was doomed, but the company remained largely unclear about its future.

Some Mac users, however, probably wonder: is Silverlight needed on Mac? Should they still install and enable it on their machine? Here are a few answers to burning questions about the technology near its demise.

What Is Silverlight?

Now in Silverlight 5, the program is defined on the Microsoft site as a “powerful development tool for creating engaging, interactive user experiences for web and mobile applications.” The free plugin is powered by the .NET framework. It is compatible with different browsers, devices, as well as operating systems.

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The multiple perceived uses and benefits of Silverlight include:

  • Media – It is hailed for the highest-quality interact video experiences both live and on-demand across various formats. This, while it protects content.
  • Business – It enables users to create business apps that offer richer and deeper interactivity, harnessing the tools and skills developers are already equipped with. It is poised to eliminate the IT challenge of deploying across multiple browsers and OS.
  • Mobile – It seeks to build touch-based apps quickly through familiar tools. The aim is to distribute via the Windows Phone Marketplace.

End-of-Life Timeline

From its initial launch back in 2007, Silverlight was already compared to Adobe’s Flash. It helped provide video streaming for different events, including the NBC coverage of the 2008 Beijing Summer Olympics, the 2010 Vancouver Winter Olympics, and the 2008 conventions for the two U.S. political parties.

Silverlight was also harnessed for the video streaming services of Amazon Video and Netflix. Since getting wind of Silverlight’s end of life, however, Netflix announced in 2013 that it was moving to HTML5 video.

In a July 2015 blog, Microsoft encouraged companies using Silverlight for media to start transitioning to DASH/MSE/CENC/EME based designs. It set October 2021 as the overall support end date for Silverlight 5.

Here is support information for various browsers and programs:

  • IE9 to 11 – Until late 2021, depending on the operating system
  • Google Chrome – No longer supports it since September 2015
  • Mozilla Firefox – No longer supports it since March 2017
  • Microsoft Edge – No plugin is available
  • macOS – No support since Firefox 52, Safari 12, and Chrome 45
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How to Enable Silverlight on Mac

If you are a Mac user and, by any chance, you find that you still need Silverlight, there are still ways to install and enable it on your computer. Don’t expect to have an easy time with it, though.

A user on macOS High Sierra, for instance, finds that Silverlight works on Safari until he gets to Safari 12. He has updated to Mojave at the same time. Upon further research, he discovers online that Safari no longer supports Silverlight, yet he couldn’t see any information about Mojave blocking apps from using the plugin.

Is it time for them to quit Silverlight altogether while staying on Mojave, or roll back to High Sierra to use the plugin again?

One handy solution is to stick to usingFirefox 52.9.0 ESR, which appears to work fine with Silverlight.

Now, it’s time for us to dig deeper into the issue of Silverlight for Mac not being recognized, or if you are continually prompted to install it. You’re likely having this problem when you receive an error message (stating an install is needed) whenever you try to access a website requiring Silverlight to display content.

This can be caused by different reasons, including:

  • An earlier version of Silverlight is in your system. However, it doesn’t meet the requirements for the plugin the site is using.
  • The plugin is actually not installed.
  • Your browser is set to “Run using Rosetta.” This will lead your machine to be incorrectly identified as a PowerPC-based Mac.

Before troubleshooting, try to assess the current environment in which the software runs. It also helps to clean out junk and other nuisance files that could be getting in the way of your Mac’s stable operations. A reliable third-party Mac optimizer tool gets this done.

Next, follow these steps:

  1. On the Apple menu, choose About this Mac.
  2. Note the processor type, speed, RAM, as well as operating system information. Certain sites have particular requirements in order for you to view their content.
  3. Close the window. Next, close all open browser windows.
  4. On the desktop, double-click the hard drive icon.
  5. Next, double-click the Library folder.
  6. Open the Internet Plug-ins folder.
  7. If you find a file named Silverlight.plugin, the plug-in is installed. To know the version, select the file and choose Get Info on the File menu. Note the displayed version number.
    • If the version number displayed is 1.0.xxx and your processor type is a PowerPC: The right version of the plugin is installed.
    • If you have an Intel processor: All versions of Silverlight are supported. You are recommended, though, to run the latest version. This way, you can access sites using the latest features and benefit from the latest product improvements.

Here are the solutions you can try for each of the three potential causes of the problem.

An Earlier Version of Silverlight Is in Your System

Typically, the website uses Silverlight 3 for its content to properly show. If this is the case, it looks at whether your system complies with the requirement. If your system doesn’t, you are directed to an upgrade on the Silverlight site. If, on the other hand, you’re using a PowerPC, the site knows this and only version 1 can be installed. Discuss this situation with the site’s support team.

The Plugin Is Actually Not Installed

Follow these instructions:

  1. On your browser, visit http://silverlight.net/getstarted/.
  2. Look for Install Silverlight in the lower-right section of the window.
    • If you are running an Intel processor, click Mac Runtimefound next to Silverlight 3.
    • If not, click Runtime for Mac PowerPClocate next to Silverlight 1.0.
  3. Once the download is complete, installation will automatically begin. Follow the steps outlined in the installation wizard.
  4. Once installation is complete, you will be prompted to exit your browser. Close your browser windows and restart the browser. By this time, it should recognize the new plug-in.

Your Browser Is Set to ‘Run Using Rosetta’

Follow these steps:

  1. On the desktop, double-click the hard drive icon.
  2. Select the Applications folder.
  3. Look for the icon for the browser that you are using. Make sure to hold down the CTRL key while clicking the icon.
  4. Choose Get Info.
  5. Locate the Run using Rosetta option. This check box should not be selected. If it is, then untick the check box. Close the window.
  6. Click Restart on the Apple menu.
  7. After your computer reboots, try to access the website that generated the error message.

Note that if the right version of the plugin isn’t installed, you should ensure that the Run using Rosetta check box is not selected as well. Afterwards, follow the steps in the last section to install the plugin.

Final Notes

Is Silverlight needed on Mac? Only you can answer this question, depending on your needs and preferences. Silverlight 5 is on life support until October 2021, at which point Microsoft will cease to support it.

Try one of the fixes we provided above if you need to install and enable Silverlight on your Mac for whatever reason you find necessary.

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When you see a 'blocked plugin' error message on a black screen when a screensaver starts, this means a plug-in — a third-party program required by the screensaver — is not working. In 99% of the cases, the plug-in in question is the Adobe Flash Player, and the solution is to update Flash to the latest version, as Apple blocks outdated versions for security reasons.

It is also possible you have never installed the required plug-in on your computer. Whatever the case is, this help page will guide you through the actions required to fix the problem.

Because the 'blocked plugin' message can be hidden by some screensavers, the solution provided here may also apply to Mac screensavers that stop working but show no errors.

Checking for updates

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Follow these steps to check for updates to the Adobe Flash Player. Alternatively, you can re-install the plug-in using the instructions below '(Re-)installing the Adobe Flash Player'.

  1. Click the Apple icon in the top left of your screen
  2. Click 'System Preferences'
  3. Check for a 'Flash Player' link in the bottom row of the System Preferences panel
  4. If a 'Flash Player' link is shown, click it and continue with the next step. If not, skip ahead to the '(Re-)installing Adobe Flash Player' section below
  5. The 'Flash Player' panel will open. Click the 'Updates' tab
  6. Click the 'Check Now' button to check for available updates
  7. If an update is available, you will be notified and forwarded to the Adobe website
  8. Follow the instructions on the Adobe website to install the Flash Player update

If no updates are available, you can try clearing 'all local storage, saved choices, settings and other data used by content in Flash Player' from the 'Advanced' tab of the Flash Player panel. Note that this will reset the settings of other applications that rely on Flash.

Download Plug In For Mac

(Re-)installing the Adobe Flash Player

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To install the Adobe Flash Player plug-in for the first time, or to update it to the latest version without checking for updates first, follow these steps:

  1. Go to https://get.adobe.com/flashplayer/otherversions/
  2. Beneath 'Step 1', select 'Mac OS X'
  3. Beneath 'Step 2', select 'FP X Mac for Safari and Firefox - NPAPI (where X is a number)
  4. Click the 'Download now' button to begin downloading the plug-in
  5. Once your download is complete, open the file that was downloaded to show its contents in the Finder, then double-click 'Install Adobe Flash Player.app'
  6. Follow the instructions of the installer to complete the installation process

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You now have the latest version of the Adobe Flash Player plug-in. The next time your screensaver starts, you should no longer see the 'blocked plugin' error message.

Need help? Have questions?

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