Onlangse wysigings

1. Übersetzung begonnen

edits to last revision - https://support.mozilla.com/en-US/forums/knowledge-base-articles/705817

Fixed a nit in verb agreement

Reworded headings, combined troublshootings sections into one

Added software update failed

Tweaks: added some {menu} stylings and extra space before an image

Kleine Anpassungen an Kitsune

Korrekturgelesen

1. Übersetzung fertig gestellt

Korrekturgelesen

1. Übersetzung fertig gestellt

Translated

precisazione molto superflua, comunque...

fixed broken links and nested lists, removed out-of-date content

Mise en conf. avec rév. en-US 13447

update for Fx4.

Qa by Underpass.

update for Fx4.

Merged revisions from satdav, michellerluna, Gryllida

細かい修正。