Index: general/genlib/js78.xml
===================================================================
--- general/genlib/js78.xml	(revision ce960d756f10784315734d15e419aec112f30230)
+++ general/genlib/js78.xml	(revision ca73053acd6076f5e150cb466eea7d0983673d3e)
@@ -14,8 +14,8 @@
   <!ENTITY js78-download-http "&mozilla-http;/firefox/releases/&ff78-version;esr/source/firefox-&ff78-version;esr.source.tar.xz">
   <!ENTITY js78-download-ftp  " ">
-  <!ENTITY js78-md5sum        "b81fc212639eab6a20c0a262e2eee302">
-  <!ENTITY js78-size          "320 MB">
+  <!ENTITY js78-md5sum        "0aa9c735305304373f9fddc35c56e81b">
+  <!ENTITY js78-size          "319 MB">
   <!ENTITY js78-buildsize     "3.0 GB (36 MB installed after removing 34MB static lib)">
-  <!ENTITY js78-time          "2.5 SBU (on a 4-core machine)">
+  <!ENTITY js78-time          "2.4 SBU (on a 4-core machine with parallelism=4)">
 ]>
 
@@ -160,4 +160,9 @@
         <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
          href="../../xincludes/mozconfigure.xml"/>
+
+        <para>
+          Compiling the C++ code respects $MAKEFLAGS and defaults to 'j1',
+          the rust code will use all processors.
+        </para>
      </note>
 
@@ -190,9 +195,8 @@
       Depending on the machine, either
       ten or fourteen JS tests related to locale and timezone fail,
-      because of an issue in <xref linkend="icu"/>.
+      because of an issue with recent versions of <xref linkend="icu"/>.
       To run the JIT test suite, issue:
       <command>make -C js/src check-jit-test
-      JITTEST_EXTRA_ARGS="--timeout 300"</command>. Again, a few tests
-      may show as unexpected failures.
+      JITTEST_EXTRA_ARGS="--timeout 300"</command>.
     </para>
 
Index: introduction/welcome/changelog.xml
===================================================================
--- introduction/welcome/changelog.xml	(revision ce960d756f10784315734d15e419aec112f30230)
+++ introduction/welcome/changelog.xml	(revision ca73053acd6076f5e150cb466eea7d0983673d3e)
@@ -46,4 +46,8 @@
      <para>May 9th, 2021</para>
      <itemizedlist>
+       <listitem>
+         <para>[ken] - Update to firefox-78.10.1 and js78.10.1. Fixes
+         <ulink url="&blfs-ticket-root;14995">#14995</ulink>.</para>
+       </listitem>
        <listitem>
          <para>[ken] - Fix seamonkey build breakage with rust-1.52.0.</para>
Index: packages.ent
===================================================================
--- packages.ent	(revision ce960d756f10784315734d15e419aec112f30230)
+++ packages.ent	(revision ca73053acd6076f5e150cb466eea7d0983673d3e)
@@ -922,5 +922,5 @@
 <!ENTITY falkon-minor-version         "0">
 <!ENTITY falkon-version               "&falkon-major-version;.&falkon-minor-version;">
-<!ENTITY firefox-version              "78.10.0">
+<!ENTITY firefox-version              "78.10.1">
 <!ENTITY flashplayer-version          "27.0.0.187">
 <!ENTITY qupzilla-version             "2.2.6">
Index: xsoft/graphweb/firefox.xml
===================================================================
--- xsoft/graphweb/firefox.xml	(revision ce960d756f10784315734d15e419aec112f30230)
+++ xsoft/graphweb/firefox.xml	(revision ca73053acd6076f5e150cb466eea7d0983673d3e)
@@ -7,13 +7,13 @@
   <!ENTITY firefox-download-http "&mozilla-http;/firefox/releases/&firefox-version;esr/source/firefox-&firefox-version;esr.source.tar.xz">
   <!ENTITY firefox-download-ftp  " ">
-  <!ENTITY firefox-md5sum        "b81fc212639eab6a20c0a262e2eee302">
-  <!ENTITY firefox-size          "320 MB">
+  <!ENTITY firefox-md5sum        "0aa9c735305304373f9fddc35c56e81b">
+  <!ENTITY firefox-size          "319 MB">
   <!-- NB with stylo, much of the build uses rust, and therefore cargo files.
     But the extra cached cargo files, if any, seem to be minimal -->
-  <!ENTITY firefox-buildsize     "5.2 GB (187 MB installed) without tests">
+  <!ENTITY firefox-buildsize     "5.2 GB (186 MB installed) without tests">
   <!-- editors: with ff63 and rust-1.29, ./mach build -j4 is probably the
    most practical way to get a timing on a machine with more cores, if taking
    cores offline is not practical. If in doubt, round up -->
-  <!ENTITY firefox-time          "28 SBU (on a 4-core machine) without tests">
+  <!ENTITY firefox-time          "30 SBU (on a 4-core machine) without tests">
 ]>
 
