Do I need to reinstall Plugins for Firefox?

I just installed Firefox and I want to run it simultaneously with Internet Explorer ..

Would I have to reinstall the following plugins ...

- Macromedia Flash Plugin
- Real Player plugin .. I have Real Player installed


- Quicktime seems to work .. I have the program installed
- I checked off the Mozilla 1.1 browser in the Java Runtime Environment Control Panel

Thanks for the help.

Probably, think I had to install those plugins when I first started using FF, but that was a beta version.

Easiest way to check is to find a media sample and see if you can view it in firefox.

Some are working while others aren't ...

I can easily reinstall those plugins that do not work

but I'm wondering if there are some settings I can tweak for the already installed IE plugin rather than installing the entire plugin again ...

For instance, since I have Realplayer installed, shouldn't a RealPlayer plugin automatically work with Firefox like it does in IE? Do I just change a setting in the program?