Komunitné fórum Firefox

The VDH add on remains grey when installed and it is impossible to download a launched video from you tube. I have tried everything -old version, suppress and reinstall, restart browser etc.. Nothing works, it just doesn't seem to be able to connect at all any longer, and used to work perfectly before. The site is totally unhelpful. The same thing happened with EasyYouTube video downloader a few months ago. Are these addons supposed to get obsolete after awhile ?

Version 134.0 (64-bit) of Firefox Running on MacBook Pro, Sequoia 15.1.1

I have checked that DRM is allowed - it is

I have rebooted my system and cleared my cache multiple times.

I just installed Firefox today.

No streaming service works. Not Prime, not Netflix, none of it. Only YouTube or other free sites. I'll hear audio only, but get stills or black screen for video. I've logged out of those sites, cleared those sites individual cache and cookies. I have disabled all add-ons for the streaming sites. I have ensured that autoplay is enabled for Firefox.

I don't know what else to do and I am in some distress over it. Any suggestions would be appreciated.