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>
Abiarazi <b>beta</b> bertsioa Thunderbirden (bertsio egonkorra exekutatu gabe) eta <b>beta-lehenetsi</b> profila erabiliko du. Thunderbird lehen erabileran <b>beta-lehenetsi</b> profila sortuko da, eta zure kontuak definitzera bideratuko zaitu. Zure profileko datu batzuk ekarri behar badituzu beta profilera, kontsultatu <a href="https://support.mozilla.org/kb/thunderbird-beta">beta euskarriko artikulua.</a>