Mozilla VPN is currently experiencing an outage. Our team is actively working to resolve the issue. Please check the status page for real-time updates. Thank you for your patience.

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

ابحث في الدعم

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.

I need to install Google Widevine on my Windows 7, Firefox browser, but it does not work.

Petikula
Petikula
more options

I tried various sources but I always get this answer: The add-on downloaded from this site could not be installed because it appears to be corrupt.

I use Norton security.

I am at lost what to do.

I tried various sources but I always get this answer: The add-on downloaded from this site could not be installed because it appears to be corrupt. I use Norton security. I am at lost what to do.

All Replies (3)

Wesley Branton
Wesley Branton
more options

A few users have reported issues with downloading addons from external sources. Please try the following:

  1. Go to the Widevine download page
  2. Right click the download link for Firefox on Windows
  3. Select Save link as... to save the XPI file to your hard drive
  4. Go to the Firefox addon manager or about:addons
  5. Click the gear icon
  6. Select Install addon from file...
  7. Open the XPI file when prompted

This should install the addon and it should be functional. If not, let us know.

Note: Once the addon has installed successfully, you may delete the XPI file that you downloaded.

Petikula
Petikula صاحب السؤال
more options

Thank you but although I followed your steps I get exactly the same response.

Wesley Branton
Wesley Branton
more options

It could be because this addon is not signed. Signing in an automated process that checks for potential threats. To protect our users' security, all unsigned addons have been blocked from running in Firefox.

To allow unsigned addons, please try the following:

  1. Go to about:config
  2. Locate the xpinstall.signatures.required boolean
  3. Change the value to false
  4. Try installing the addon, via the website
  5. If that doesn't work, try install the addon by using the steps in my previous post