• INTRO
• ABOUT THUNDERBIRD
• ABOUT THIS MANUAL
• HOW EMAIL WORKS
• EMAIL ETIQUETTE
• INSTALLATION
• WINDOWS
• OSX
• OTHER LINUX DISTRIBUTIONS
• WHAT IS FLOSS?
• REMOVING THUNDERBIRD
• SWITCHING TO THUNDERBIRD
• MIGRATING!
• UBUNTU
• MIGRATING FROM PREVIOUS VERSIONS
• ACCOUNT SET UP
• BASIC USAGE
• INTERFACE
• GETTING MAIL
• COMPOSING MESSAGES
• READING AND ORGANIZING MAIL
• SEARCHING AND FILTERING MESSAGES
• ARCHIVING MESSAGES
• ADDRESS BOOK
• ADDRESS BOOK BASICS
• SECURITY
• SECURITY OPTIONS
• BEYOND THE BASICS
• KEYBOARD SHORTCUTS
• TAGGING AND MARKING
• RSS
• FILTERS
• USEFUL TIPS AND TRICKS
• ACTIVITY MANAGER
• UNIFIED FOLDERS
• ADD ONS
• OVERVIEW
• USING THE ADD-ON MANAGER
• ENABLING AND DISABLING ADD-ONS
• THUNDERBROWSE
• LIGHTNING
• THUNDERBIRD CONVERSATIONS
• ATTACHMENT REMINDER
• THREADVIS
• SIGNATURE SWITCH
• APPENDIX
• GETTING SUPPORT
• TROUBLESHOOTING
• CREDITS

Installing Lightning

Lightning is a Thunderbird extension that adds calendar functions to the email client. Here's how to install it.

1. Go to the Tools menu and click Add-ons to open the Add-on window.

   

2. In the Search All Add-ons box, type Lightning.

   

3. Click on the Lightning extension.
4. Click the Add to Thunderbird button

   A message asking you to verify that you chose the correct extension appears.

   

5. After a four-second delay, you can click the Install Now button. Or, you can click the Cancel button at any time.

   

6. Once installation is complete, restart Thunderbird.

You can learn more about Lightning by going to the Lightning Project web site.