this post was submitted on 20 Nov 2023
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Firefox CSS

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Pushing the limits of the Firefox Browser through the use of CSS.

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Has anyone figured out how to have vertical native tabs, with no 3rd party addons like Tree Style Tabs? (self.firefoxcss)
submitted 1 year ago by TheTwelveYearOld to c/firefoxcss
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Theoretically it should be possible to make child elements flow vertically instead of horizontally, by setting these properties on the parent: display: flex; flex-direction: column;. I tried that with a bunch of the tab elements and it didn't work. The problem with addons like TST is that they glitch out sometimes, and you have to wait for the tabs to load, it takes much longer on my M1 Mac once I have 100s of tabs open (don't judge me).

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[–] MrOtherGuy 2 points 1 year ago

So, like here is a bit more useful version. It's no more "just a handful of lines" because I needed to add a few workarounds for some obvious issues. And it surely is still not great - probably the most annoying issue is that if it ever happens that Firefox thinks that the tabs would overflow then you will irrecoverably lose the ability to scroll the those vertical tabs using mouse wheel - until you restart Firefox. And also as I already mentioned you can't reorder tabs. And probably a whole bunch of other issues as well.