Use Firefox to go to the above site to update the Firefox plugin (will also install plugin for most other browsers except IE).Start Firefox and check your version again or test the installation by going back to the download link below.Windows 7 and Vista: may need to right-click the installer and choose "Run as Administrator".Click on the installer you just downloaded and install.After download is complete, exit Firefox.If you do not have the current version, click on the "Player Download Center" link on the " Download and information" or " Download Manual installers" below.
Download and SAVE to your Desktop so you can find the installer later.Update the Flash plugin to the latest version.Note: plugin check page does not have information on all plugin versions.Security update version 10.2.152.26 released.You can also see your plugins from the Firefox menu, Tools > Add-ons > Plugins. To see the plugins submitted with your question, click "More system details." to the right of your original question post.
The information submitted with your question indicates that you have out of date plugins with known security and stability issues that should be updated.