I'm not able to click on the vertically placed VERSIONS and EPICS elements on my project's backlog page using Firefox. It works fine w/ Chrome and Edge.
Edge/Chrome: the fields are accessible:

But use Firefox and you can't move the mouse over either of these two fields - the focus goes right to the vertical bar to widen or narrow the leftmost frame as the fields show too close to that line:

Is there a workaround available other than "use a different browser"?