open the block of plugin
playing video on youtube is always choppy.
Wšě wotmołwy (1)
https://support.mozilla.org/en-US/kb/update-firefox-latest-version 42.*
Security Issue: Update your Flash Player Version 19.0.0.245
https://www.adobe.com/products/flashplayer/distribution3.html
Note: Windows users should download the ‘’’active_x’’’ for “Internet Explorer,”
and the ‘’’plugin’’’ for “Plugin-based browsers” (like Firefox).
Note: Edge on Win10 does not use ActiveX version but its own Flash.
See if there are updates for your graphics drivers https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration