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 piece of javascript that can detect if a certain plugin is installed. Returns true if installed, returns false otherwise.

For example...how do I get a list of plugins, and then loop through to see if one of them match my plugin name? If match, return 1.

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:

Answer 2

solved:

document.writeln("<TABLE BORDER=1><TR VALIGN=TOP>",
   "<TH ALIGN=left>i",
   "<TH ALIGN=left>name",
   "<TH ALIGN=left>filename",
   "<TH ALIGN=left>description",
   "<TH ALIGN=left># of types</TR>")
for (i=0; i < navigator.plugins.length; i++) {
   document.writeln("<TR VALIGN=TOP><TD>",i,
      "<TD>",navigator.plugins[i].name,
      "<TD>",navigator.plugins[i].filename,
      "<TD>",navigator.plugins[i].description,
      "<TD>",navigator.plugins[i].length,
      "</TR>")
}
document.writeln("</TABLE>")