Posted by Stefan Kanthak on Oct 13

Hi @ll,

Mozilla Firefox 38 (both standard and ESR) and newer installs and per
default activates Cisco’s OpenH264 video codec; see <about:plugins>

Firefox 33 to 37 downloaded this codec and installed it on demand; see
<http://blogs.cisco.com/collaboration/ciscos-openh264-now-part-of-firefox>

This extension comes as “Gecko media plugin”[*]; for Windows it is
implemented as DLL … and installed into the Firefox…