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Comment by rcthompson | Hacker News Reader

Edit: I guess I'm misremembering how Chrome works, or maybe they changed it since I've last used Chrome seriously. I'll leave the comment so the replies make sense.

Original comment:

I'm kind of surprised that Mozilla went with a per-tab approach here, since they went with per-window for private browsing (while Chrome did the opposite: per-tab private browsing and per-window profiles).

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That's not right. Chrome's incognito mode is per window.

Not even. Chome's session isolation is only per each of the two browsing modes.

Chrome supports multiple profiles (click the person icon or username on the upper right), not just logged and incognito.

I don't think those profiles let you do things per-tab.

Yes, but all incognito tabs are in the same session, even if opened in separate windows.

This. The relevant Chromium issue report is here [1], and it's been open for years.

[1] https://bugs.chromium.org/p/chromium/issues/detail?id=24690

What do you mean? It opens a new window?

I might be remembering wrong, but I'm pretty sure Chrome started with per-window private browsing before eventually upgrading to per-tab.

So Firefox seems to be just jumping ahead of that initial limitation from the start here.

how does per tab incognito work in chrome ? I can only find per window (which i assumed was the only way to do it)

It's not even per-window. If you open an Incognito window and log into a website, any other Incognito windows will share that same cookie jar and thus also be logged in to said website. I would love a way to keep them distinct, but simply opening a new window won't do it--you have to close all Incognito windows/tabs to clear its temporary cookie jar.

Aha, you're right (I don't use Chrome, so I was just assuming the GP was more up-to-date than me on its current features).

I recall Opera 12 had per-tab incognito - I'm not sure, do any current browsers have it?

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