Om dizze add-ons te brûken, moatte jo Firefox downloade.

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Add-onpiktogram

Beoardielingen foar Simple Tab Groups

Simple Tab Groups troch Drive4ik

4 stjer fan 5
5
1.148
4
219
3
107
2
98
1
281
Wurdearringen foar Firefox-brûker 16412302
troch Firefox-brûker 16412302, 5 jierren lyn
That helps: (by rk)
EDIT. For those having similar issues. I think the trick is to open about:config and set closeWindowWithLastTab to false.