The updated packages fix a security vulnerabilities:
Out of bounds reads in sctploadaddressesfrominit. (CVE-2019-20503)
Use-after-free when removing data about origins. (CVE-2020-6805)
BodyStream::OnInputStreamReady was missing protections against state confusion. (CVE-2020-6806)
Use-after-free in cubeb during stream destruction. (CVE-2020-6807)
Devtools' 'Copy as cURL' feature did not fully escape website-controlled data, potentially leading to command injection. (CVE-2020-6811)
The names of AirPods with personally identifiable information were exposed to websites with camera or microphone permission. (CVE-2020-6812)
Memory safety bugs fixed in Thunderbird 68.6. (CVE-2020-6814)