Om dizze add-ons te brûken, moatte jo Firefox downloade.

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Tree Style Tab troch Piro (piro_or)

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Wurdearringen foar itistoday
troch itistoday, 8 jierren lyn
You sir, are a hero.

And those who want FF to look like it did with the previous version of Tree Style Tabs, see the hints here: https://news.ycombinator.com/item?id=15342728