diff --git a/MozillaFirefox.changes b/MozillaFirefox.changes
index d20f4a4..9478dbe 100644
--- a/MozillaFirefox.changes
+++ b/MozillaFirefox.changes
@@ -1,3 +1,20 @@
+-------------------------------------------------------------------
+Wed May  5 15:13:20 UTC 2021 - Andreas Stieger <andreas.stieger@gmx.de>
+
+- Mozilla Firefox 88.0.1
+  * Fixed: Resolved an issue caused by a recent Widevine plugin
+    update which prevented some purchased video content from
+    playing correctly (bmo#1705138)
+  * Fixed: Fixed corruption of videos playing on Twitter or
+    WebRTC calls on some Gen6 Intel graphics chipsets
+    (bmo#1708937)
+  * Fixed: Fixed menulists in Preferences being unreadable for
+    users with High Contrast Mode enabled (bmo#1706496)
+  MFSA 2021-20 (bsc#1185633)
+  * CVE-2021-29952 (bmo#1704227)
+    Race condition in Web Render Components
+- devel package: move macros to /usr/lib/rpm/macros.d (boo#1185658)
+
 -------------------------------------------------------------------
 Sun May  2 12:03:26 UTC 2021 - Wolfgang Rosenauer <wr@rosenauer.org>
 
diff --git a/MozillaFirefox.spec b/MozillaFirefox.spec
index 5cd0839..710d54c 100644
--- a/MozillaFirefox.spec
+++ b/MozillaFirefox.spec
@@ -33,8 +33,8 @@
 # major 69
 # mainver %major.99
 %define major          88
-%define mainver        %major.0
-%define orig_version   88.0
+%define mainver        %major.0.1
+%define orig_version   88.0.1
 %define orig_suffix    %{nil}
 %define update_channel release
 %define branding       1
@@ -687,8 +687,8 @@ rm -f %{buildroot}%{progdir}/update-settings.ini
 mkdir -p %{buildroot}%{_bindir}
 install -m 755 %SOURCE12 %{buildroot}%{_bindir}
 # inspired by mandriva
-mkdir -p %{buildroot}%{_sysconfdir}/rpm
-cat <<'FIN' >%{buildroot}%{_sysconfdir}/rpm/macros.%{progname}
+mkdir -p %{buildroot}%{_rpmmacrodir}
+cat <<'FIN' >%{buildroot}%{_rpmmacrodir}/macros.%{progname}
 # Macros from %{name} package
 %%firefox_major              %{major}
 %%firefox_version            %{version}
@@ -781,7 +781,7 @@ exit 0
 %files devel
 %defattr(-,root,root)
 %{_bindir}/mozilla-get-app-id
-%config %{_sysconfdir}/rpm/macros.%{progname}
+%{_rpmmacrodir}/macros.%{progname}
 %endif
 
 %if %localize
diff --git a/firefox-88.0.1.source.tar.xz b/firefox-88.0.1.source.tar.xz
new file mode 100644
index 0000000..50027e6
--- /dev/null
+++ b/firefox-88.0.1.source.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:83df1eae0e28fe99661fd5d39d705cdab2e108b4a24ce12c2db6183c632804cc
+size 376465316
diff --git a/firefox-88.0.1.source.tar.xz.asc b/firefox-88.0.1.source.tar.xz.asc
new file mode 100644
index 0000000..2a75742
--- /dev/null
+++ b/firefox-88.0.1.source.tar.xz.asc
@@ -0,0 +1,16 @@
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diff --git a/firefox-88.0.source.tar.xz b/firefox-88.0.source.tar.xz
deleted file mode 100644
index df07a4b..0000000
--- a/firefox-88.0.source.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:6b50dbfb393f843e4401e23965a1d8f7fd44b5a7628d95138294094094eee297
-size 373744508
diff --git a/firefox-88.0.source.tar.xz.asc b/firefox-88.0.source.tar.xz.asc
deleted file mode 100644
index 68780aa..0000000
--- a/firefox-88.0.source.tar.xz.asc
+++ /dev/null
@@ -1,16 +0,0 @@
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diff --git a/l10n-88.0.tar.xz b/l10n-88.0.1.tar.xz
similarity index 100%
rename from l10n-88.0.tar.xz
rename to l10n-88.0.1.tar.xz
diff --git a/tar_stamps b/tar_stamps
index 01c6740..a0899a3 100644
--- a/tar_stamps
+++ b/tar_stamps
@@ -1,11 +1,11 @@
 PRODUCT="firefox"
 CHANNEL="release"
-VERSION="88.0"
+VERSION="88.0.1"
 VERSION_SUFFIX=""
-PREV_VERSION="87.0"
+PREV_VERSION="88.0"
 PREV_VERSION_SUFFIX=""
 #SKIP_LOCALES="" # Uncomment to skip l10n and compare-locales-generation
 
 RELEASE_REPO="https://hg.mozilla.org/releases/mozilla-release"
-RELEASE_TAG="38ee7c9c51c5c95d854c6e9eaa962f21d4f17753"
-RELEASE_TIMESTAMP="20210415204500"
+RELEASE_TAG="179e1482851c07d65bf29a21c9e42ea312fc87fa"
+RELEASE_TIMESTAMP="20210504152106"