How do I detect a custom plugin in Firefox/IE/Chrome?

Question

My team wants to build a \"plugin\" for firefox/chrome/IE. How do I use javascript to detect if this plugin (not extension) is installed?

I would like to have a piec

Answer 1

navigator.plugins will have an array of plugins that you can check.

This exists for Firefox, Chrome, and IE (at least version 8, I don't have a lower version to test)

Here's what the array looks like in webkit: