This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

how to import MULTIPLE .ics files into Thunderbird 78 Calendar ?

  • 2 replies
  • 1 has this problem
  • 79 views
  • Last reply by asifwhynot

more options

Hi - i have almost successfully migrated from Window Live Mail 2011 TO Thunderbird 78, have got all emails, storage folders, account,etc, setup BUT -- trying to import MULTIPLE (like 5000 .ics files -- 10 years worth of calendar events) into Thunderbird 78 -- i understand in Thunderbird > Events and Tasks > Import > Choose the .ics file i saved to disk... and it works (in Windows 10, i changed the default email program to Thunderbird AND the default .ics extension to be handled by Thunderbird) BUT HOW DO I IMPORT MULTIPLE .ICS FILES ??? not 1 at a time... i have > 5000

i looked into ImportExportToolsNG (helped with alot) but not .ics calendar events

is there a way to do this ?

THANKS

Hi - i have almost successfully migrated from Window Live Mail 2011 TO Thunderbird 78, have got all emails, storage folders, account,etc, setup BUT -- trying to import MULTIPLE (like 5000 .ics files -- 10 years worth of calendar events) into Thunderbird 78 -- i understand in Thunderbird > Events and Tasks > Import > Choose the .ics file i saved to disk... and it works (in Windows 10, i changed the default email program to Thunderbird AND the default .ics extension to be handled by Thunderbird) BUT HOW DO I IMPORT MULTIPLE .ICS FILES ??? not 1 at a time... i have > 5000 i looked into ImportExportToolsNG (helped with alot) but not .ics calendar events is there a way to do this ? THANKS

Chosen solution

All Replies (2)

more options

Chosen Solution

There are several instructions for merging multiple ics files, depending on the OS. Try one of these for Linux:

https://unix.stackexchange.com/questions/539600/merge-multiple-ics-kalender-files-into-one-file

https://iaizzi.me/2021/02/10/how-to-merge-ics-files/

https://icsmerger.com/

more options

MANY THANKS sfhowes !! THAT saved ALOT of time -- i had no idea you could combine .ics files like that...