diff --git a/lib/config.tmpl b/lib/config.tmpl
index 76f901560fdce72e2675cd09d0087c2c98b78099_bGliL2NvbmZpZy50bXBs..067b826f718ed2548304de4ce05643b770a97602_bGliL2NvbmZpZy50bXBs 100644
--- a/lib/config.tmpl
+++ b/lib/config.tmpl
@@ -12,8 +12,8 @@
   [% toplink = '/' %]
 [% END %]
 
-[% releaseversion = '2.53.2' %]
-[% releaserelnoteversion = '2.53.2' %]
+[% releaseversion = '2.53.3' %]
+[% releaserelnoteversion = '2.53.3' %]
 [% releasename = "SeaMonkey $releaseversion" %]
 [% relnotes = "${toplink}releases/seamonkey$releaserelnoteversion/" %]
 [% download_win = "https://download.mozilla.org/?product=seamonkey-$releaseversion&os=win&lang=en-US" %]
diff --git a/lib/sitemap.xml b/lib/sitemap.xml
index 76f901560fdce72e2675cd09d0087c2c98b78099_bGliL3NpdGVtYXAueG1s..067b826f718ed2548304de4ce05643b770a97602_bGliL3NpdGVtYXAueG1s 100644
--- a/lib/sitemap.xml
+++ b/lib/sitemap.xml
@@ -13,6 +13,6 @@
   <page url="news" title="News" id="news" />
 
   <page url="releases/" title="Download and Releases" id="releases">
-    <page url="releases/2.53.3b1" title="2.53.3 Beta 1" id="2.53.3b1" hide="false">
+    <page url="releases/2.53.3" title="2.53.3" id="2.53.3" hide="false">
       <page url="releases/seamonkey2.53.3/" title="Release Notes" id="seamonkey2.53.3"/>
     </page>
@@ -17,6 +17,7 @@
       <page url="releases/seamonkey2.53.3/" title="Release Notes" id="seamonkey2.53.3"/>
     </page>
-    <page url="releases/2.53.2" title="2.53.2" id="2.53.2" hide="false">
+    <page url="releases/2.53.3b1" title="2.53.3 Beta 1" id="2.53.3b1" hide="true" />
+    <page url="releases/2.53.2" title="2.53.2" id="2.53.2" hide="true">
       <page url="releases/seamonkey2.53.2/" title="Release Notes" id="seamonkey2.53.2"/>
     </page>
     <page url="releases/2.53.2b1" title="2.53.2 Beta 1" id="2.53.2b1" hide="true" />
diff --git a/src/news.en.xml b/src/news.en.xml
index 76f901560fdce72e2675cd09d0087c2c98b78099_c3JjL25ld3MuZW4ueG1s..067b826f718ed2548304de4ce05643b770a97602_c3JjL25ld3MuZW4ueG1s 100644
--- a/src/news.en.xml
+++ b/src/news.en.xml
@@ -7,6 +7,44 @@
 -->
 
 <newsfeed title="SeaMonkey News" url="http://seamonkey-project.org/news">
+  <entry id="2020-07-07" showfront="true">
+    <headline>SeaMonkey 2.53.3 released</headline>
+    <content type="html" xml:lang="en">
+<![CDATA[<p>
+The SeaMonkey project is proud to present SeaMonkey 2.53.3: The new release of
+the all-in-one Internet suite is
+<a href="http://www.seamonkey-project.org/releases/">available for download
+now</a>! 2.53.3 is an incremental update from the 2.53.x branch and incorporates
+a number of changes, including to multimedia support and address books, and
+fixes from the underlying platform code. <font color="#ff0000"><strong>Before
+installing it make a full backup of your profile and thoroughly read and follow
+the <a href="releases/seamonkey2.53.3/">Release Notes</a></strong></font>.
+</p>
+<p>
+SeaMonkey 2.53.3 is available in 22 languages, for Windows, macOS x64 and Linux.
+</p>
+<p>
+<b>Automatic upgrades from previous versions are disabled for this release. If
+you need to upgrade from an earlier version, please download the full installer
+from the downloads section and install SeaMonkey 2.53.3 manually over the
+previous version.</b><br>
+</p>
+<p>
+For a more complete list of major changes in SeaMonkey 2.53.3, see the
+<a href=http://www.seamonkey-project.org/releases/seamonkey2.53.3/#new>What's
+New in SeaMonkey 2.53.3</a> section of the
+<a href="http://www.seamonkey-project.org/releases/seamonkey2.53.3/">Release
+Notes</a>, which also contain a list of known issues and answers to frequently
+asked questions. For a more general overview of the SeaMonkey project (and <a
+href="http://www.seamonkey-project.org/doc/screenshots">screen shots</a>!),
+visit <a href="http://www.seamonkey-project.org/">www.seamonkey-project.org</a>.
+</p>
+<p>
+We encourage users to <a href="dev/get-involved">get involved</a> in discussing
+and reporting problems as well as further improving the product.
+</p>]]>
+    </content>
+  </entry>
   <entry id="2020-06-15" showfront="true">
     <headline>SeaMonkey 2.53.3 Beta 1 released</headline>
     <content type="html" xml:lang="en">
@@ -30,7 +68,7 @@
 </p>]]>
     </content>
   </entry>
-  <entry id="2020-05-03" showfront="true">
+  <entry id="2020-05-03" showfront="false">
     <headline>SeaMonkey 2.53.2 released</headline>
     <content type="html" xml:lang="en">
 <![CDATA[<p>
@@ -63,8 +101,8 @@
 visit <a href="http://www.seamonkey-project.org/">www.seamonkey-project.org</a>.
 </p>
 <p>
-We encourage testers to <a href="dev/get-involved">get involved</a> in
-discussing and reporting problems as well as further improving the product.
+We encourage users to <a href="dev/get-involved">get involved</a> in discussing
+and reporting problems as well as further improving the product.
 </p>]]>
     </content>
   </entry>
@@ -123,8 +161,8 @@
 visit <a href="http://www.seamonkey-project.org/">www.seamonkey-project.org</a>.
 </p>
 <p>
-We encourage testers to <a href="dev/get-involved">get involved</a> in
-discussing and reporting problems as well as further improving the product.
+We encourage users to <a href="dev/get-involved">get involved</a> in discussing
+and reporting problems as well as further improving the product.
 </p>]]>
     </content>
   </entry>
diff --git a/src/releases/2.53.2.en.html b/src/releases/2.53.2.en.html
index 76f901560fdce72e2675cd09d0087c2c98b78099_c3JjL3JlbGVhc2VzLzIuNTMuMi5lbi5odG1s..067b826f718ed2548304de4ce05643b770a97602_c3JjL3JlbGVhc2VzLzIuNTMuMi5lbi5odG1s 100644
--- a/src/releases/2.53.2.en.html
+++ b/src/releases/2.53.2.en.html
@@ -33,7 +33,7 @@
   report these issues as bugs. Thanks.
 </div>
 -->
-<!-- <div class="important">
+<div class="important">
   <strong class="very-strong shout">Warning!</strong> The SeaMonkey version
   available for download from this page is outdated and may suffer from
   <a href="http://www.mozilla.org/security/known-vulnerabilities/#SeaMonkey">known
@@ -42,7 +42,6 @@
   <br>We strongly advise you to download the <a href="./">current release</a>
   instead.
 </div>
--->
 
 <ul class="toc">
   <li><a href="#official">Official Builds</a></li>
diff --git a/src/releases/2.53.3b1.en.html b/src/releases/2.53.3.en.html
similarity index 91%
copy from src/releases/2.53.3b1.en.html
copy to src/releases/2.53.3.en.html
index 76f901560fdce72e2675cd09d0087c2c98b78099_c3JjL3JlbGVhc2VzLzIuNTMuM2IxLmVuLmh0bWw=..067b826f718ed2548304de4ce05643b770a97602_c3JjL3JlbGVhc2VzLzIuNTMuMy5lbi5odG1s 100644
--- a/src/releases/2.53.3b1.en.html
+++ b/src/releases/2.53.3.en.html
@@ -1,7 +1,7 @@
 [%- PROCESS release.tmpl -%]
-[%- smversion = '2.53.3b1' -%]
-[%- prettyversion = '2.53.3 Beta 1' -%]
+[%- smversion = '2.53.3' -%]
+[%- prettyversion = '2.53.3' -%]
 [%- relnoteversion = '2.53.3' -%]
 [%- mirrorred = false -%]
 [%- uselongversion = false -%]
 [%- usefulldetails = true -%]
@@ -4,10 +4,10 @@
 [%- relnoteversion = '2.53.3' -%]
 [%- mirrorred = false -%]
 [%- uselongversion = false -%]
 [%- usefulldetails = true -%]
-[%- releasedate = "June 15, 2020" -%]
-[%- srcsize = "278" -%]
-[%- l10nsrcsize = "11" -%]
+[%- releasedate = "July 7, 2020" -%]
+[%- srcsize = "281" -%]
+[%- l10nsrcsize = "12" -%]
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
 <html lang="en">
 <head>
@@ -109,9 +109,9 @@
 <h2 id="source">Source code</h2>
 <div class="section">
   <p>The source code is available either as a tar package or from the
-    <a href="https://gitlab.com/seamonkey-project/seamonkey-2.53-comm/tree/2_53_3_beta_01/">comm source repository</a>,
-    <a href="https://gitlab.com/seamonkey-project/seamonkey-2.53-mozilla/tree/2_53_3_beta_01/">mozilla source repository</a> and
-    <a href="https://gitlab.com/seamonkey-project/seamonkey-2.53-l10n/tree/2_53_3_beta_01/">l10n source repository</a> on GitLab.
+    <a href="https://gitlab.com/seamonkey-project/seamonkey-2.53-comm/tree/2_53_3_final/">comm source repository</a>,
+    <a href="https://gitlab.com/seamonkey-project/seamonkey-2.53-mozilla/tree/2_53_3_final/">mozilla source repository</a> and
+    <a href="https://gitlab.com/seamonkey-project/seamonkey-2.53-l10n/tree/2_53_3_final/">l10n source repository</a> on GitLab.
   </p>
 
   <ul>
diff --git a/src/releases/index.en.html b/src/releases/index.en.html
index 76f901560fdce72e2675cd09d0087c2c98b78099_c3JjL3JlbGVhc2VzL2luZGV4LmVuLmh0bWw=..067b826f718ed2548304de4ce05643b770a97602_c3JjL3JlbGVhc2VzL2luZGV4LmVuLmh0bWw= 100644
--- a/src/releases/index.en.html
+++ b/src/releases/index.en.html
@@ -5,5 +5,5 @@
 [%- mirrorred = false -%]
 [%- uselongversion = false -%]
 [%- usefulldetails = true -%]
-[%- releasedate = "May 3, 2020" -%]
+[%- releasedate = "July 7, 2020" -%]
 [%- betareleasedate = "June 15, 2020" -%]
@@ -9,6 +9,6 @@
 [%- betareleasedate = "June 15, 2020" -%]
-[%- srcsize = "278" -%]
-[%- l10nsrcsize = "11" -%]
+[%- srcsize = "281" -%]
+[%- l10nsrcsize = "12" -%]
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
 <html lang="en">
 <head>
@@ -134,9 +134,9 @@
 <h3 id="source">Source code</h3>
 <div class="section">
   <p>The source code is available either as a tar package or from the
-    <a href="https://gitlab.com/seamonkey-project/seamonkey-2.53-comm/tree/2_53_2_final/">comm source repository</a>,
-    <a href="https://gitlab.com/seamonkey-project/seamonkey-2.53-mozilla/tree/2_53_2_final/">mozilla source repository</a> and
-    <a href="https://gitlab.com/seamonkey-project/seamonkey-2.53-l10n/tree/2_53_2_final/">l10n source repository</a> on GitLab.
+    <a href="https://gitlab.com/seamonkey-project/seamonkey-2.53-comm/tree/2_53_3_final/">comm source repository</a>,
+    <a href="https://gitlab.com/seamonkey-project/seamonkey-2.53-mozilla/tree/2_53_3_final/">mozilla source repository</a> and
+    <a href="https://gitlab.com/seamonkey-project/seamonkey-2.53-l10n/tree/2_53_3_final/">l10n source repository</a> on GitLab.
   </p>
 
   <ul>
@@ -199,7 +199,8 @@
 <div class="para" id="old">
   <p>Previously released versions of SeaMonkey:</p>
   <ul class="snav">
-    <!-- <li><a href="2.53.3b1">2.53.3 Beta 1</a></li> -->
+    <!-- <li><a href="2.53.3">2.53.3</a></li> -->
+    <li><a href="2.53.3b1">2.53.3 Beta 1</a></li>
     <li><a href="2.53.2">2.53.2</a></li>
     <li><a href="2.53.2b1">2.53.2 Beta 1</a></li>
     <li><a href="2.53.1">2.53.1</a></li>
diff --git a/src/releases/seamonkey2.53.3/index.en.html b/src/releases/seamonkey2.53.3/index.en.html
index 76f901560fdce72e2675cd09d0087c2c98b78099_c3JjL3JlbGVhc2VzL3NlYW1vbmtleTIuNTMuMy9pbmRleC5lbi5odG1s..067b826f718ed2548304de4ce05643b770a97602_c3JjL3JlbGVhc2VzL3NlYW1vbmtleTIuNTMuMy9pbmRleC5lbi5odG1s 100644
--- a/src/releases/seamonkey2.53.3/index.en.html
+++ b/src/releases/seamonkey2.53.3/index.en.html
@@ -107,8 +107,8 @@
   <li>The preference for hiding the toolbar and menubar grippies can now be
     changed from "Preferences->Appearance".
   </li>
-  <li>Change default to not autohide tab bar when there is only one tab in a
-    window.
+  <li>Changed the default to not autohide tab bar when there is only one tab in
+    a window.
   </li>
   <li>Update of help page content and links.
   </li>
@@ -168,7 +168,7 @@
 
 <p>
 [% rnote.basename %] uses the same backend as Firefox and contains the relevant
-<a href="https://www.mozilla.org/en-US/security/known-vulnerabilities/firefox/#firefox[% changes.fx.ver %]">Firefox [% changes.fx.tm %] security fixes</a>.
+<a href="https://www.mozilla.org/en-US/security/known-vulnerabilities/firefox/#firefox[% changes.sec.tm %]">Firefox [% changes.sec.tm %] security fixes</a>.
 </p>
 <p>
 [% rnote.basename %] shares most parts of the mail and news code with Thunderbird.
diff --git a/src/releases/seamonkey2.53.3/relnote.var b/src/releases/seamonkey2.53.3/relnote.var
index 76f901560fdce72e2675cd09d0087c2c98b78099_c3JjL3JlbGVhc2VzL3NlYW1vbmtleTIuNTMuMy9yZWxub3RlLnZhcg==..067b826f718ed2548304de4ce05643b770a97602_c3JjL3JlbGVhc2VzL3NlYW1vbmtleTIuNTMuMy9yZWxub3RlLnZhcg== 100644
--- a/src/releases/seamonkey2.53.3/relnote.var
+++ b/src/releases/seamonkey2.53.3/relnote.var
@@ -1,7 +1,7 @@
 [%- rnote.baseversion = "2.53.3" -%]
 [%- rnote.basename = "SeaMonkey 2.53.3" -%]
-[%- rnote.version = "2.53.3b1" -%]
-[%- rnote.name = "SeaMonkey 2.53.3 Beta 1" -%]
+[%- rnote.version = "2.53.3" -%]
+[%- rnote.name = "SeaMonkey 2.53.3" -%]
 [%- rnote.relativeto.version = "2.53.2" -%]
 [%- rnote.relativeto.name = "SeaMonkey 2.53.2" -%]
 [%- rnote.relativeto.stable.version = "2.49.5" -%]
@@ -12,4 +12,4 @@
 [%- changes.tb.tm = "60.0" -%]
 [%- changes.fx.ver = "60.3" -%]
 [%- changes.fx.tm = "60.3" -%]
-[%- changes.sec.tm = "60.3" -%]
+[%- changes.sec.tm = "60.4" -%]