import changes from tenfourfox:

- remove Get More Tools, since it doesn't work (638361bd8)
- #583: always-on (mostly) reader mode (cb5d8f86a)
- #583: update Readability to latest tip; update glue to new API (8bd4c09a7)
- #581: M1047098 M1355576 (ec8e68102)
- closes #582: M1358018 modified for 45ESR (74fd7b6d0)
- a better idea for #583 (f0a4e7686)
- #584: M1507180 M1598605 (7b58ac561)
- #584: update certs, pins, TLDs (f9572b6f0)
- #334: remove moar tele (0761d9501)

security/manager/ssl/TransportSecurityInfo.cpp

@@ -23,6 +23,7 @@
 #include "nsServiceManagerUtils.h"
 #include "nsXULAppAPI.h"
 #include "PSMRunnable.h"
+#include "mozilla/net/DNS.h"
 
 #include "secerr.h"
 
@@ -677,8 +678,10 @@ GetSubjectAltNames(CERTCertificate *nssCert,
 
       case certIPAddress:
         {
-          char buf[INET6_ADDRSTRLEN];
+          // According to DNS.h, this includes space for the null-terminator
+          char buf[net::kNetAddrMaxCStrBufSize] = {0};
           PRNetAddr addr;
+          memset(&addr, 0, sizeof(addr));
           if (current->name.other.len == 4) {
             addr.inet.family = PR_AF_INET;
             memcpy(&addr.inet.ip, current->name.other.data, current->name.other.len);