File extension: Replace Alt+Right/Alt+Left with Tab/Shift+Tab
File extension: Replace Alt+Right/Alt+Left with Tab/Shift+Tab

Pressing Alt on Ubuntu stole the focus from the text entry (which caused the popup to be hidden) and it turned out to be impossible to prevent that from happening.

khalim19/gimp-plugin-export-layers,khalim19/gimp-plugin-export-layers