Hi, Devoman,
Type
about colon plugins
(site wants to make a smiley if I type it here the way you need to type it)
where URLs go, and then scroll to the bottom of the page.
You should see something like this:
Windows Media Player Plug-in Dynamic Link Library
File name: npdsplay.dll
Npdsplay dll
MIME Type Description Suffixes
Enabled application/asx Media Files * Yes
video/x-ms-asf-plugin Media Files * Yes
application/x-mplayer2 Media Files * Yes
video/x-ms-asf Media Files asf,asx,* Yes
video/x-ms-wm Media Files wm,* Yes
audio/x-ms-wma Media Files wma,* Yes
audio/x-ms-wax Media Files wax,* Yes
video/x-ms-wmv Media Files wmv,* Yes
video/x-ms-wvx Media Files wvx,* Yes
Microsoft® DRM
File name: npdrmv2.dll DRM
Netscape Network Object
MIME Type Description Suffixes Enabled
application/x-drm-v2 Network Interface Plugin nip Yes
Microsoft® DRM
File name: npwmsdrm.dll DRM Store Netscape Plugin
MIME Type Description Suffixes Enabled
application/x-drm Network Interface Plugin nip Yes
If you don't have those, the best place to start is here:
Support | Mozilla
with "Videos don't seem to play in Firefox."
Have fun!
Lamar