Alternatively, there is HideTabBar which allows you to set a key combination with which you can hide all tabs and then bring them back when you need them. That one, however, would mean you had to press whatever keys you had chosen to bring the tab bar back every time you wanted to move from one tab to another and then press the keys again to hide the bar again, so it's not very convenient if you are moving between a lot of tabs.
I think the Tab Mix Plus option is by far the most practicable. But perhaps someone else will have some better suggestion than either of mine.
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