To keep your browser running smoothly, you should always run the most up-to-date versions of your browser and plugins (plus patches to your operating system, but that’s a different post entirely)… and that means you need to check if your browser has the most recent versions of your plugins every so often.
For firefox, this doesn’t take long, but it is buried inside a few menus.
Here are the steps to need to take to Update your Firefox Plugins:
Next, Click ‘plugins’ – then ‘Check to see if your plugins are up to date’
Finally, if you see out of date plugins, either update – or disable them
Also see: Quick And Easy Tips To Speed Up Firefox