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Silverlight has stopped working in Firefox 12.0 but works fine in Safari. Have uninstalled and reinstalled but this didn't fix it.

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Silverlight has stopped working in Firefox 12.0 but works fine in Safari. Have uninstalled and reinstalled but this didn't fix it. I also tried the font fix with Arial and Verdana but this didn't fix either.

Would appreciate any help.

Silverlight has stopped working in Firefox 12.0 but works fine in Safari. Have uninstalled and reinstalled but this didn't fix it. I also tried the font fix with Arial and Verdana but this didn't fix either. Would appreciate any help.

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Did it stop when you upgraded to Firefox 12, or did it stop independently of a Firefox upgrade? In any case, you should upgrade to Firefox 13 as a first step -- this might have already been fixed.

Is the plugin actually loaded/enabled? This article walks you through installing, setting up, and verifying that Silverlight is working: https://support.mozilla.org/en-US/kb/Using%20the%20Silverlight%20plugin%20with%20Firefox