This page describes Thunderbird's configuration options for startup. =Specify whether Thunderbird should check for new messages at startup= Menu location: {menu {for win,mac}Tools{/for}{for linux}Edit{/for} > Account Settings > <account name> > Server Settings} =Configure how Thunderbird behaves when there is no internet connection (offline)= Menu location: {menu {for mac}Thunderbird > Preferences{/for}{for win}Tools > Options{/for}{for linux}Edit > Preferences{/for} > Advanced > Network & Disk Space} =Configure Thunderbird as the default mail client= Menu location: {menu {for mac}Thunderbird > Preferences{/for}{for win}Tools > Options{/for}{for linux}Edit > Preferences{/for} > Advanced > General} =Configure the page that displays when Thunderbird is first started= Menu location: {menu {for mac}Thunderbird > Preferences{/for}{for win}Tools > Options{/for}{for linux}Edit > Preferences{/for} > General} =Configure the connection to the internet= Menu location: {menu {for mac}Thunderbird > Preferences{/for}{for win}Tools > Options{/for}{for linux}Edit > Preferences{/for} > Advanced > Network & Disk Space}

This page describes Thunderbird's configuration options for startup.

Specify whether Thunderbird should check for new messages at startup

Menu location: ToolsEdit > Account Settings > <account name> > Server Settings

Configure how Thunderbird behaves when there is no internet connection (offline)

Menu location: Thunderbird > PreferencesTools > OptionsEdit > Preferences > Advanced > Network & Disk Space

Configure Thunderbird as the default mail client

Menu location: Thunderbird > PreferencesTools > OptionsEdit > Preferences > Advanced > General

Configure the page that displays when Thunderbird is first started

Menu location: Thunderbird > PreferencesTools > OptionsEdit > Preferences > General

Configure the connection to the internet

Menu location: Thunderbird > PreferencesTools > OptionsEdit > Preferences > Advanced > Network & Disk Space