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

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Iceggiren i Scroll Up Folder

Scroll Up Folder sγur Bruce Bujon (Perfect Slayer)

3,9 n yitran ɣef 5
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Tiririt sɣur Bruce Bujon (Perfect Slayer)

Tiririt n ineflayen

yeffeɣ-d deg 7 tahun yang lepas
I'm sorry the add-on doesn't fit you anymore. As you said, I can't do better with the scroll feature due to the WebExtensions limitation but you should have a try with the Alt+Up / Alt+Down keyboard shortcuts. It's the best I can do for you.