Disable Tab Close

I tried to use it to prevent Ctrl W from closing a tab, and instead it swapped in another tab and removes the original tab, causing it to function in a loop anytime you press Ctrl W, and leaving you unable to close out of the new tab thereafter. Obviously thats not what I was looking for, and obviously i was trying to "Disable Tab Close". I understand if it was trying to have it swap to another tab instead, but thats not what its doing for me. It doesnt work, and it also breaks your tab functionality (if you can make it so that it actually disables tab close, i will appreciate it, but right now, its near-malicious in how it behaves.

Thank you. So helpful to prevent accidental closing. New users: This does NOT work through the toolbar. Instead, (once installed) - right-click at the tab/page title (in the tab bar that lists the tabs open in the current window), and choose - "Disable Tab Close" from the drop down list.