Bugzilla

There's a couple of things to check here, https://en.opensuse.org/SDB:Firefox_MP4/H.264_Video_Support + bug 1659209  provide some background.
- Some of OpenSuse's libavcodec packages do not have support for proprietary codecs. Could you check if your versions against those mentioned in https://en.opensuse.org/SDB:Firefox_MP4/H.264_Video_Support to see if they're one of the versions that's expected to provide support.
- Some of OpenSus's libavcodec packages use a different naming scheme than expected by the linker. Bug 1659209 discusses this. I notice some of the above libs have a similar naming convention to the ones causing issue in that bug. Using a different package may resolve this, or symlinking your existing libs as in https://bugzilla.mozilla.org/show_bug.cgi?id=1659209#c9 (assuming the existing libs do support the codecs).

There's a couple of things to check here, https://en.opensuse.org/SDB:Firefox_MP4/H.264_Video_Support + bug 1659209  provide some background.
- Some of OpenSuse's libavcodec packages do not have support for proprietary codecs. Could you check your versions against those mentioned in https://en.opensuse.org/SDB:Firefox_MP4/H.264_Video_Support to see if they're one of the versions that's expected to provide support.
- Some of OpenSus's libavcodec packages use a different naming scheme than expected by the linker. Bug 1659209 discusses this. I notice some of the above libs have a similar naming convention to the ones causing issue in that bug. Using a different package may resolve this, or symlinking your existing libs as in https://bugzilla.mozilla.org/show_bug.cgi?id=1659209#c9 (assuming the existing libs do support the codecs).

There's a couple of things to check here, https://en.opensuse.org/SDB:Firefox_MP4/H.264_Video_Support + bug 1659209  provide some background.
- Some of OpenSuse's libavcodec packages do not have support for proprietary codecs. Could you check your versions against those mentioned in https://en.opensuse.org/SDB:Firefox_MP4/H.264_Video_Support to see if they're one of the versions that's expected to provide support.
- Some of OpenSuse's libavcodec packages use a different naming scheme than expected by the linker. Bug 1659209 discusses this. I notice some of the above libs have a similar naming convention to the ones causing issue in that bug. Using a different package may resolve this, or symlinking your existing libs as in https://bugzilla.mozilla.org/show_bug.cgi?id=1659209#c9 (assuming the existing libs do support the codecs).