On YouTube search for example, when I double-click a word to select/delete it, immediately opens a popup.
If I double-click again — even on the same word — it creates another popup instead of reusing/updating the existing one.
This can be repeated infinitely and quickly spams the screen with overlapping popups.
Expected behavior:
Only one popup should exist at a time, or the old popup should update/close automatically.
Environment:
Windows 10
Firefox Developer Edition (latest version)

On YouTube search for example, when I double-click a word to select/delete it, immediately opens a popup.
If I double-click again — even on the same word — it creates another popup instead of reusing/updating the existing one.
This can be repeated infinitely and quickly spams the screen with overlapping popups.
Expected behavior:
Only one popup should exist at a time, or the old popup should update/close automatically.
Environment:
Windows 10
Firefox Developer Edition (latest version)