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A comment on Switching from Chrome to Firefox? Here Are Some Tips. Parent comment
Officially, you enable them through the MAC extension, which also adds some more UI.
https://addons.mozilla.org/en-US/firefox/addon/multi-account...
Other extensions (like Tree Style Tab) can also cause container tabs to be enabled.
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Officially, you enable them through the MAC extension, which also adds some more UI.
https://addons.mozilla.org/en-US/firefox/addon/multi-account...
Other extensions (like Tree Style Tab) can also cause container tabs to be enabled.