Your new media player seems to conflct with Windows 10. Tried it and it gummed up my computer. HAd to uninstall it. Do not ask me to update again. Thanks.
See the topic. This is not helping.
Additional System Details
- Adobe PDF Plug-In For Firefox and Netscape 15.8.20082
- Intel web components updater - Installs and updates the Intel web components
- Intel web components for Intel® Identity Protection Technology
- User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:40.0) Gecko/20100101 Firefox/40.0
Who is "your"? The media player built in to Firefox seems to work fine. I can watch videos using Firefox and Windows 10 and it works fine. Is it just one file that slows down your computer or many?
Keep in mind many people here are volunteers.
As far as I know, there are no media players created by Mozilla.