Thanks for your post.

This request is being tracked here:
https://winscp.net/tracker/851

Can I request that in the next version we have some tab close buttons as per firefox tabs. My preference is for a single close button 'x' on the far right hand of the tabs area, exactly where it used to be on Firefox by default (browser.tabs.closeButtons = 3) Clicking on it closes the current tab.

Later versions of Firefox have the option of putting close buttons on each tab which I don't like as it reduces the amount of space for text.