If you installed the beta program into its own program directory (choice 1 above) and you used a <a href="https://support.mozilla.org/en-US/kb/dedicated-profile-thunderbird-installation">dedicated profile per Thunderbird</a>, then start the release version of Thunderbird and it should use your release version profile data. If you no longer want to use the beta version, and do not need any of the beta data (address books, local folders, pop folders, etc), and wish to remove the beta data and beta program from your system:
Os ydych wedi gosod y rhaglen beta yn ei gyfeiriadur rhaglen ei hun (dewis 1 uchod) a'ch bod wedi defnyddio <a href="https://support.mozilla.org/en-US/kb/dedicated-profile-thunderbird-installation"> proffil pwrpasol fesul Thunderbird</a>, yna dechreuwch y fersiwn rhyddhau o Thunderbird a dylai ddefnyddio data proffil eich fersiwn rhyddhau. Os nad ydych chi eisiau defnyddio'r fersiwn beta mwyach, ac nad oes angen unrhyw ddata beta arnoch (llyfrau cyfeiriad, ffolderi lleol, ffolderi pop, ac ati), ac yn dymuno tynnu'r data beta a'r rhaglen beta o'ch system: