###**Installing Thunderbird Add-ons** * From the Thunderbird main window, select Tools and click Add-ons [image:125] * Select Extensions and then remove any existing addons / extensions [image:126] [image:132] * After you have removed them, restart Thunderbird. * From the Thunderbird main window, select Tools and click Add-ons * Click the Settings to install the SOGO add-ons [image:127] * Select the downloaded sogo-integrator-*xx.x.x*.xpi extension and install it. [image:128] [image:129] * Click Restart Now to complete the installation [image:130] * After Thunderbird is restarted, select Work Online. Thunderbird will automatically install the sogo connector and other extensions and restart itself automatically. * Select Work Online and a popup message will appear for the SOGO Calendar and Address Book password. **Make sure to tick the box for "Use Password Manager to remember this password"** [image:131]