this addon doesn't work well Puntuado con 3 de 5 estrellas
it does't compat with the addon---tab utilities
it can cause issue
I've tested with the "tab utilities" add-on and I didn't see anything wrong.
Can you send me details at zepeuj.at.yahoo.fr
* a description of the issue with the steps done
* the messages from the error console (please clear the previous message before to test the close of the duplicated tab).