Does its job well. Rated 5 out of 5 stars

I use it to disable double-click tab closing.

Does not work with Tab Utilities Lite.

[edit - since there's no threaded discussion]

Perhaps it's a third addon that's conflicting? I ended up just disabling Tab Utilities Lite. =)

Hmm, I just downloaded Tab Utilities Lite and DCCT still works fine as far as I can tell.

Update: Yes, maybe it's a 3rd addon conflicting with TUL. When I tested TUL + DCCT, I didn't see any issue to either addon, although I didn't test much of TUL's functionalities - DCCT shouldn't affect any of those, however, unless user set conflicting tab-clicking options in DCCT and TUL.