Excellent, does exactly what i needed and that is to set video speed as globally (most/all videos) as possible.

I initially thought that I can only set the speed for all the tabs. After reading the description, and digging around a bit, now I have realized that I can set the speed only for one tab(as I only need it for spotify) which is really good, this extension is exactly what I needed

very nice. it's light and remembers speed globally (unlike others, which don't or are not updated)

挺好的

One of the most useful Firefox Extensions

It works like a charm. and the extra things like pinned tabs with different speed is a bonus

nice