Is this iOS or Windows?
If Windows, did you install the latest plugins LocalSettingsComponents v1.1.0.105 and Webplugins v4.0.2402.3 ?
Those two plugins must be accepted to run on Windows Startup and must be running in background seen in Task Manager - Processes as LocalServiceComponents.exe(32bit) and WebPluginService.exe(32bit)
If Windows, did you install the latest plugins LocalSettingsComponents v1.1.0.105 and Webplugins v4.0.2402.3 ?
Those two plugins must be accepted to run on Windows Startup and must be running in background seen in Task Manager - Processes as LocalServiceComponents.exe(32bit) and WebPluginService.exe(32bit)