Your Shockwave Flash plugin probably is set to "Ask to Activate" (which means, click to play). You could try switching it to "Always Activate" on the Add-ons page. Either: * Ctrl+Shift+a * orange Firefox button (or Tools menu) > Add-ons In the left column, click Plugins. If Firefox only offers the options of "Ask to Activate" and "Never Activate" then most likely the version you have is on the "block list." This is a regularly updated list of add-ons that are either out-of-date or malicious. If you can approve the plugin to run as needed, then it is a "soft block" that eventually will turn into a hard block where you will not be able to enable it at all. I realize Flash 11.3 and higher can create a lot of problems in Firefox. Most of these are due to the protected mode feature. If you eventually have to update, the following pages provide different ways to disable the feature: * Adobe support article under the heading "Last Resort": [http://forums.adobe.com/message/4468493#TemporaryWorkaround Adobe Forums: How do I troubleshoot Flash Player's protected mode for Firefox?] * Manual steps: https://support.mozilla.org/questions/968190?page=5#answer-509209 * Batch file to automate the manual steps: https://support.mozilla.org/questions/982093#answer-518078