Aby toś te dodanki wužywał, musyśo Firefox ześěgnuś.

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Pógódnośenja za Tab Open/Close Control

Tab Open/Close Control wót F. Kolbe

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Pógódnośenja wót llagerlof
wót llagerlof, 7 éve
I want to open new tabs on the far left. It's a shame that a browser mature as Firefox haven't this as an option.
This extension saved the day.