• 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

Enabling and Disabling Add-Ons

Using the Add-ons Manager, you can quickly and easily enable or disable any of your installed add-ons. Why would you want to do that? When you upgrade Thunderbird, the application disables all third-party add-ons (ones that you didn't install from the Mozilla website). In that case, you'll need to re-enable those add-ons.

Or, if you run into problems with Thunderbird the cause is sometimes a conflict caused by an add-on. To diagnose the problem, you'll need to turn off your extensions and then selectively turn them back on. For more information about this, see the section Add-Ons in the Troubleshooting chapter.

To enable and disable add-ons:

1. Select Tools > Add-ons Manager.
2. Click Extensions on the left side of the Add-ons Manager tab.

   

3. Click the Disable or Enable button beside an extension.

   Note: You might have to restart Thunderbird for the changes to take effect. To do that, click the Restart Now link.