If you have enough tabs open that they are narrower than usual, and then you close enough tabs so that they will all fit with a larger width, the tabs strech to fill the rest of the sapce.
With this feature, when you close a tab with the mouse, the tabs stay the same size until your mouse leaves the tab bar. This way your mouse stays on top of the close button and can close several tabs without re-aiming your mouse cursor.
I believe Chrome introduced this feature, and it was copied by Firefox and now even other apps like Kate. It's very convenient when closing several tabs with the mouse.
If you have enough tabs open that they are narrower than usual, and then you close enough tabs so that they will all fit with a larger width, the tabs strech to fill the rest of the sapce.
With this feature, when you close a tab with the mouse, the tabs stay the same size until your mouse leaves the tab bar. This way your mouse stays on top of the close button and can close several tabs without re-aiming your mouse cursor.
I believe Chrome introduced this feature, and it was copied by Firefox and now even other apps like Kate. It's very convenient when closing several tabs with the mouse.