Plug-in updated but profile still shows older version

Question

I've spent most of the morning trying to update my Silverlight plugin to the latest version (5.1.10411.0) from the older version that's now blocked (5.0.61118.0). I've tried multiple downloads and installations, both with the plugin disabled and with it not disabled, and I've also manually removed the files Microsoft says to remove to manually uninstall Silverlight:
/Library/Internet Plug-Ins/Silverlight.plugin
/Library/Receipts/Silverlight.pkg
/Library/Receipts/Silverlight_W2_MIX.pkg
/Library/Internet Plug-Ins/WPFe.plugin
/Library/Receipts/WPFe.pkg
Finally, I created a new user on my Mac, opened Firefox in that user, and discovered that the Silverlight plugin was updated to (5.1.10411.0). I restarted the Mac, opened my regular user and Firefox profile... and the Silverlight plugin still shows as (5.0.61118.0).
I'm pretty sure that this is just a plist somewhere that's not updating. Any ideas of what I can do short of continually yanking out files, reinstalling, and hoping for the best?

Answer 1

Hello masinger and thanks for contacting us for solving your problem.
As we can see, your browser still reports Silverlight version 5.0.61118.0. That may mean that the update was not unsuccessful. Try to uninstall and install again Silverlight. Then restart your computer.
We might also require some technical information if that doesn't work on your computer. Please do the following if reinstalling Silverlight doesn't work:
*Click the Firefox button at the top left, then click the ''Help'' menu and select ''Troubleshooting information'' from the submenu. If you don't have a Firefox button, click the Help menu at the top and select ''Troubleshooting information'' from the menu.
Now, a new tab containing your troubleshooting information should open.
*At the top of the page, you should see a button that says "Copy all to clipboard''. Click it.
*Now, go back to your forum post and click inside the reply box. Press Ctrl+V to paste all the information you copied into the forum post.
If you need further information about the Troubleshooting information page, please read the article [[Using the Troubleshooting Information page]].
Thanks in advance for your help!