In addition to messages about Flash Player possibly being unsafe, when I click on the message I'm taken to the page regarding Java. I do have the latest Java add-on installed & activated as well. I've not checked to see if this affects content, but I'll be testing extensively in the next 24 hours by streaming sports events. I've made no changes to any Firefox options (other than add-ons), and I've tried all the suggestions available on your forum - downloading/installing add-ons produce no error messages.

This is neither urgent nor important, so if this is the only report, low priority.