Greasy Fork is available in English.
Beschleunigen, verlangsamen, vorrücken, zurückspulen, jedes HTML5-Video auf jeder Site mit schnellen Verknüpfungen schleifen!
< Rückmeldungen aufVideo-Verknüpfungen
The script always works. I use it myself every day :)
Regarding the default speed, if it’s still relevant to you, write here, I’ll think about what can I do.
Not working.
But would be great if it would save the default speed-setting, for me would be 2x :-)