Here’s what keeps me sane while watching youtube on Firefox:
Adblock for Youtube by Adblock Systems
AdBlocker for YouTube by AdblockLite
AdBlocker for YouTube by James Fray
AdGuard AdBlocker by Adguard Software Ltd
Clean YouTube™ - No ADS by Divya
DF YouTube (Distraction Free) by RickyV
Disable Youtube comments by Fernando Bartholomeu
Focused Youtube by dukevin
Remove YouTube Suggestions by Lawrence
SponsorBlock for YouTube - Skip Sponsorships by Ajay Ramachandran
Unhook - Remove YouTube Recommended Videos by Unhook
Youtube Recommendations Blocker by peabrainiac
Youtube Sidebar Remover by Firefox user 14074444
Also useful:
YouTube™ No Buffer (Stop Auto-playing) by James Fray
It’s a horrifying number of extensions.
