Mozilla will shut down Pocket’s services on July 8, 2025. At that time users will no longer be able to access the Pocket website, apps and API. You can export your saved items and API data until October 8, 2025 before they are permanently removed. For more information, see this article.

Avatar for Username

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

How to get Silverlight to work with Firefox

  • 7 replies
  • 1 has this problem
  • 396 views
  • Last reply by ItalUmbria

ItalUmbria
ItalUmbria

I gather this has become a problem with Firefox, so I'm late to the game. I want to use Silverlight 64-bit with a mapping program that requires it, but have not been able to get Silverlight to work with Firefox (I have 64-bit Firefox v59.x and W10). Anyone out there have a suggestion?

I gather this has become a problem with Firefox, so I'm late to the game. I want to use Silverlight 64-bit with a mapping program that requires it, but have not been able to get Silverlight to work with Firefox (I have 64-bit Firefox v59.x and W10). Anyone out there have a suggestion?

Chosen solution

Why do Java, Silverlight, Adobe Acrobat and other plugins no longer work? https://support.mozilla.org/en-US/kb/npapi-plugins

Only the Firefox 52 ESR still allows other NPAPI Plugins to run besides the Flash Player Plugin from Adobe. For Windows if you use Win64 Firefox 52 ESR then only the 64-bit Flash Player and Silverlight NPAPI Plugins will run.

Read this answer in context 👍 0

All Replies (7)

James (On Vacation)
James (On Vacation)
  • Moderator
  • Top 10 Contributor

Chosen Solution

Why do Java, Silverlight, Adobe Acrobat and other plugins no longer work? https://support.mozilla.org/en-US/kb/npapi-plugins

Only the Firefox 52 ESR still allows other NPAPI Plugins to run besides the Flash Player Plugin from Adobe. For Windows if you use Win64 Firefox 52 ESR then only the 64-bit Flash Player and Silverlight NPAPI Plugins will run.

Modified by James (On Vacation)

ItalUmbria
ItalUmbria Question owner

I read this Mozilla article before I posted my question. When was it written? It doesn't fully and clearly answer my question.

FredMcD
FredMcD

All plugins, except for the flash player, are no longer allowed in Firefox.

Happy112
Happy112

ItalUmbria said

I read this Mozilla article before I posted my question. When was it written? It doesn't fully and clearly answer my question.

The article does mention that you can (for now) download the Firefox ESR version (for Silverlight you can use both 32-bit and 64-bit) from here :

https://www.mozilla.org/firefox/organizations/all/

James (On Vacation)
James (On Vacation)
  • Moderator
  • Top 10 Contributor

ItalUmbria said

I read this Mozilla article before I posted my question. When was it written? It doesn't fully and clearly answer my question.

It does if you read the last part.

Does not matter when it was written as it gives the needed information.

Murphy
Murphy

James said

It does if you read the last part.

Hear, hear - see Happy112's post ......

ItalUmbria
ItalUmbria Question owner

Thank you Happy 112. Gottit.