How to prevent Terminal window from changing its size after opening and closing tab
Solution 1:
The solution is to turn on setting to always show tab bar, even if only one tab is open in window:
- in top bar, go to
View→Show Tab Bar, - or use keyboard shortcut ⇧+⌘+T.
This is just a workaround I have found on this site to a bug that is present in Terminal app at least since 2009. So far this is the only solution that was working for me consistently on every OS X installation.