Start the <b>beta</b> version of Thunderbird (with release version not running) and it will use the <b>default-beta</b> profile. On first use Thunderbird will create the <b>default-beta</b> profile, and it will prompt you to define your accounts. If you need to bring some data from your release profile into the beta profile, consult the <a href="https://support.mozilla.org/kb/thunderbird-beta">beta support article.</a>
Startujśo <b>beta</b> wersiju Thunderbird (bźez togo, aby stabilna wersija běžała) a wóna buźo profil <b>default-beta </b> wužywaś. Pśi prědnem wužywanju Thunderbird profil <b>default-beta</b> napórajo, a was napominajo, swóje konta definěrowaś. Jolic cośo někotare daty z profila swójeje stabilneje wersije do profila swójeje betawersije pśenosowaś, cytajśo <a href="https://support.mozilla.org/kb/thunderbird-beta">nastawk pomocy za betawersiju</a>.