Provide a drop down list of open tabs

It can get a bit awkward to find a file that's already open, if there are a lot of them (more tabs than can fit on the screen horizontally). Scrolling horizontally to find one becomes a bit unwieldy once there are more than a certain number open - especially if you're in the habit of using long, descriptive file names, like I am.

What I'd like is a drop down list of open tabs, in addition to the scrolling mechanism that's there now - e.g. accessed by a small button on the right hand end of the tab bar, after the two arrow buttons, similar to the one in Firefox or the old version of Foxit Reader I use (3.x, I think - I gave up on more recent versions, so I don't know if they still do that).

No matter how long the file names are, a vertical list can easily show two or three dozen open tabs - which should be enough for almost anyone. It would also let us switch instantly between tabs, instead of having to scroll through to find the right one.