In case of accidentally opening a huge number of tabs (which can sometimes freeze the computer for awhile, has happened here recently) - is there a way to disable this option across the browser (for any groups of bookmarks), or at least require a confirmation before proceeding? If not, could there be?
estrnod,
Take a look at the keyboard shortcuts. Particularly
“Close the current window” Control + Shift + w
You might race against the tide, by using that key combination.
(Until your feature request is granted. Good luck.)
ref.: