SUSE: 2020:3418-1 Moderate: MozillaThunderbird Vulnerability Fix

This update for MozillaThunderbird fixes the following issues: - Mozilla Thunderbird 78.4.2 MFSA 2020-49 (bsc#1178611) * CVE-2020-26950 (bmo#1675905) Write side effects in MCallGetProperty opcode not accounted for - Mozilla Thunderbird 78.4.1 * new: Thunderbird prompts for an address to use when starting an email from an address book entry with multiple addresses (bmo#84028) * fixed: Searching global search results did not work (bmo#1664761) * fixed: Link location was not focused by default when adding a hyperlink in message composer (bmo#1670660) * fixed: Advanced address book search dialog was unusable (bmo#1668147) * fixed: Encrypted draft reply emails lost "Re:" prefix (bmo#1661510) * fixed: Replying to a newsgroup message did not open the compose window (bmo#1672667)