./upper_sorbian_spelling_dictionary-0.0.20060327.3-tb+fx+sm.xpi already exists, skipping download
Getting https://addons.mozilla.org/firefox/downloads/file/113003/upper_sorbian_spelling_dictionary-0.0.20060327.3-tb+fx+sm.xpi to ./upper_sorbian_spelling_dictionary-0.0.20060327.3-tb+fx+sm.xpi