Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Hilfe durchsuchen

Vorsicht vor Support-Betrug: Wir fordern Sie niemals auf, eine Telefonnummer anzurufen, eine SMS an eine Telefonnummer zu senden oder persönliche Daten preiszugeben. Bitte melden Sie verdächtige Aktivitäten über die Funktion „Missbrauch melden“.

Weitere Informationen

With the new Thunderbird Lightning has gone and no article helps me find it back!

  • 1 Antwort
  • 1 hat dieses Problem
  • 118 Aufrufe
  • Letzte Antwort von user01229325
  • Archiviert

Yesterday the newest version (52.5.2) of Thunderbird was installed and now Lightning is gone. I tried the forum, but no help. I downloaded the newest version (file lightning-5.4-sm+tb-windows.xpi) but I don't know how to install this. Double click does not work. Now what do I do???

Yesterday the newest version (52.5.2) of Thunderbird was installed and now Lightning is gone. I tried the forum, but no help. I downloaded the newest version (file lightning-5.4-sm+tb-windows.xpi) but I don't know how to install this. Double click does not work. Now what do I do???

Alle Antworten (1)

He easiest way to install add-ons. Go to the add on tab. Click extensions. Type the name of the add-on in the search box. Install.

When you download the add-on file you install it, not open it with a double click. On the add-on tab under Extensions is an icon that looks like a gear. Click that and select Install for file. Navigate to where you placed the file and install.