To use these add-ons, you'll need to download Firefox.

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Iceggiren i Turn Off the Lights for Firefox

Turn Off the Lights for Firefox sɣur Stefan vd

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Icegger-it Rzrz
sɣur Rzrz, 2 år sidan
I'm just using this to block 60fps videos, works flawlessly. Unfortunately youtube doesn't provide 1080p 30fps videos so you have to settle with 720p

Edit: for some reason the block 60fps feature doesn't work anymore