I was having issues opening new links on new tabs, they always went to the far right. After uninstalling the plugin they started to behave normally opening next to my current tab.

Very useful tool white managing abundant tabs!

Very good idea unfortunately looks ugly

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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

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.
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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.