Today's Update did throw out my calendar. Tried to reinstall, no install box in add-ons. Please help. Need my calendar asap.
Today's update threw out my calendar. I first downloaded it again and tried to reinstall, but no go, since the install box also does not appear in the add-ons tab. Then downloaded Thunderbird anew, in the hopes the supposedly installed calendar would appear. That did not happen either. Please help, since I need my calendar. Lots of appointments in there that are almost impossible to recreate elsewhere.
Today's update threw out my calendar. I first downloaded it again and tried to reinstall, but no go, since the install box also does not appear in the add-ons tab. Then downloaded Thunderbird anew, in the hopes the supposedly installed calendar would appear. That did not happen either.
Please help, since I need my calendar. Lots of appointments in there that are almost impossible to recreate elsewhere.
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If you downloaded Lightning you do not need an "install box." You go to the add on tab, select Extensions and click the icon that looks like a gear. Select Install from File.
The easiest way to do add-ons is to go the the add-on tab. Select Extensions Type Lightning in the search box and install.