Hi, sorry I do not even remember that one.

What you do have is Options --> Tabs --> Show tab previews in the Windows taskbar

As to how that goes to a Mac I am not sure.

Can't you open the Window menu otherwise?

Try to toggle this pref on the about:config page.

• browser.tabs.drawInTitlebar = false

You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue.

• http://kb.mozillazine.org/about:config

Hi, all I could find was : https://addons.mozilla.org/firefox/addon/tip-tab/

This has nothing to do with Firefox in particular. This is about a special Window menu item that is part of the Mac OS and that shows open windows in a drop-down list ordered alphabetically if I'm correct (used to be ordered differently in a long past). You can compare this with the "List Al Tabs" drop-down list that Firefox has for tabs in the current window.

Maybe you should ask this on a Mac oriented forum as they may be aware of how this should work.