can not open downloaded item by press ENTER key on linux

[weijarz]

Your DownThemAll! and Browser Version and Language and Operating System

Firefox 56
English
ArchLinux

Expected Behavior

Preee ENTER key to open downloaded item.

Actual Behavior

Ignores enter key.

Steps To Reproduce

Select an item then press enter.

Additional info such as log extracts

Please enable Diagnostic Logging in the Privacy tab of the DownThemAll! preferences and either copy/paste essential part of the log or attach the entire log. Please note that the log may include sentitive information which you have to remove prior to posting it!