The URL drop down arrow doesn't work when Firefox is having this problem.
Another workaround is to right-click on the toolbars, select Customise and then Done (without making any adjustments). This seems to reset Firefox back to normal.
The URL drop down arrow doesn't work when Firefox is having this problem.
Another workaround is to right-click on the toolbars, select Customise and then Done (without making any adjustments). This seems to reset Firefox back to normal.