New tab doesn't appear
Firefox version 66.0b5 (64-bit) Treetabs version 1.9.3
If open new tab via ctrl+T new tab is not observed in tabstree. However if hide-show treetabs, then new tab become visible.
Firefox version 66.0b5 (64-bit) Treetabs version 1.9.3
If open new tab via ctrl+T new tab is not observed in tabstree. However if hide-show treetabs, then new tab become visible.