Aby toś te dodanki wužywał, musyśo Firefox ześěgnuś.

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Pógódnośenja za Firefox Multi-Account Containers

Firefox Multi-Account Containers wót Firefox

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Pógódnośenja wót Wužywaŕ Firefox 18066063
wót Wužywaŕ Firefox 18066063, 2 წლის წინ
This is the closest I've found to Chrome's tab system (super helpful for students) but I wish you were able to edit/add more categories.