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Cool

Extremely useful for organisation

However, it does often glitch in one particular way. I keep it on the right side of my desktop, but sometimes the formatting gets messed up where the crosses all appear on the left and the down arrows on the right, with no indentations below each tree, undermining its utility

閉じたタブを開き直す で最後に閉じたタブだけじゃなくて直近10件くらいから選択できたら嬉しい

In today’s fast-paced world, productivity tools and travel solutions need to be more than functional — they need to be intelligent, intuitive, and stress-reducing. Two standout innovations doing just that are Tree Style Tab, a Firefox extension by Piro (piro_or), and TruAirFare, a travel booking platform that’s changing the way people fly. Together, they represent how technology can streamline both digital workflows and real-world journeys.
visit the and get more exciting

It's a good addon. I can't use firefox without it. However the recent update seems to be greying out some (but not all?) discarded tab favicons when I already have something to display that they've been discarded.
I tend to recognise tabs in part by favicon colour; is there a way to disable this behaviour? Nothing in the options for Tree Style Tab. Recent updates mentions some 'secret options' and I've no idea how to even access those.

Besides that, Tree Style Tabs sometimes loses the highlight of the active tab, and the only way you can identify it is mousing over all tabs and checking which one doesn't highlight.

愛用させてもらっていてこの星をつけるのは本当に申し訳ないのですが、これが直らないとほかの人におすすめはできないです…。
「ウィンドウを閉じる->ウィンドウをすぐに開きなおす」
とすると
「今まで開いていたタブが一瞬表示される->タブがすべて閉じられる」
という症状が起きます。
これに2度やられてとても困っているので、大変疲れています…。
バグがある以外は、理想的な拡張機能です。
Floorpと合わせて使っています。

I have a problem with the sidebar and creating new windows. It automatically disables the TST sidebar and it's somewhat annoying to press F1 each time I need to create a new window. Hope it's fixed soon or that there's a toggle option somewhere!