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Container Tabs missing in Firefox Nightly 55.0

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  • 1 has this problem
  • Last reply by philipp

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So I just installed Nightly Build 55.0, specifically for this function, and it's just flat out missing. Nothing like "Container tabs" or it's icon can be found can be found anywhere...really dissapointing...

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hi, use the testpilot experiment if you can't find the icon to add to the toolbar: