You can also use AMO to find add-ons for Mozilla %(startTBLink)sThunderbird%(endTBLink)s and %(startSMLink)sSeaMonkey%(endSMLink)s.
Seqdec AMO akken ad d-tafeḍ izegrar i Mozilla %(startTBLink)sThunderbird%(endTBLink)s akk d %(startSMLink)sSeaMonkey%(endSMLink)s.