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When I downloaded Firefox again, it gave me a nice option called “VerticalTabs”. I could also see this option in FirefoxLabs, but when I had to delete Firefox due to a bug on my computer, I could no longer see it in FirefoxLabs. Also, FirefoxLabs used to have an artificial intelligence add-on called ChatBot, but now it is gone. What is the reason?

When I downloaded Firefox again, it gave me a nice option called “VerticalTabs”. I could also see this option in FirefoxLabs, but when I had to delete Firefox due to a bug on my computer, I could no longer see it in FirefoxLabs. Also, FirefoxLabs used to have an artificial intelligence add-on called ChatBot, but now it is gone. What is the reason?
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I've just refreshed the browser. And I got AI back. But, still, can't get the vertical tabs option back.

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