Sadly does not support properly facebook anymore. Videos like relations, rolls etc can not be downloaded because the add-on icon does not shows up on those media like it did previously.
Additionally the user-script variant of the add-on notoriously popups very irritating ads on the pages about some "OrangeMonkey" add-on. Those can't be disabled or turned off.
Sorry folks, but I won't use such OrangeMonkey junk just because you want me to use it.
Just f-off with that crap please!
Such nasty behavior should be also reported to Mozilla due to the violation of their rules!

EXCELENTE

Работает через раз на Mozilla Firefox. На Microsoft Edge работает норм. К сожалению рабочий браузер Firefox - потому и 2