diff --git a/.gitignore b/.gitignore
index a2cd52c..0d88631 100644
--- a/.gitignore
+++ b/.gitignore
@@ -134,3 +134,5 @@ SOURCES/nss-3.79.0-6.el8_1.src.rpm
 /wasi.patch
 /firefox-140.9.0esr.processed-source.tar.xz
 /firefox-langpacks-140.9.0esr-20260318.tar.xz
+/firefox-140.9.1esr.processed-source.tar.xz
+/firefox-langpacks-140.9.1esr-20260408.tar.xz
diff --git a/firefox.spec b/firefox.spec
index cede7a6..198ac1d 100644
--- a/firefox.spec
+++ b/firefox.spec
@@ -191,7 +191,7 @@ end}
 
 Summary:        Mozilla Firefox Web browser
 Name:           firefox
-Version:        140.9.0
+Version:        140.9.1
 Release:        1%{?dist}
 URL:            https://www.mozilla.org/firefox/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
@@ -222,7 +222,7 @@ ExcludeArch:    aarch64 s390 ppc
 # Link to original tarball: https://archive.mozilla.org/pub/firefox/releases/%%{version}%%{?pre_version}/source/firefox-%%{version}%%{?pre_version}.source.tar.xz
 Source0:        firefox-%{version}%{?pre_version}%{?buildnum}.processed-source.tar.xz
 %if %{with langpacks}
-Source1:        firefox-langpacks-%{version}%{?pre_version}-20260318.tar.xz
+Source1:        firefox-langpacks-%{version}%{?pre_version}-20260408.tar.xz
 %endif
 Source2:        cbindgen-vendor.tar.xz
 Source3:        process-official-tarball
@@ -616,7 +616,6 @@ Provides: bundled(pdf.js)
 Provides: bundled(pdfjs)
 Provides: bundled(perfetto)
 Provides: bundled(picosha2)
-Provides: bundled(pipewire)
 Provides: bundled(PKI.js)
 Provides: bundled(puppeteer)
 Provides: bundled(pywebsocket3)
@@ -2138,6 +2137,9 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #---------------------------------------------------------------------
 
 %changelog
+* Wed Apr  8 2026 Jan Horak <jhorak@redhat.com> - 140.9.1-1
+- Update to 140.9.1 ESR
+
 * Wed Mar 18 2026 Jan Horak <jhorak@redhat.com> - 140.9.0-1
 - Update to 140.9.0 ESR
 
diff --git a/sources b/sources
index 0c5aa88..8586083 100644
--- a/sources
+++ b/sources
@@ -1,8 +1,8 @@
 SHA512 (mochitest-python.tar.gz) = 089b1593068b76f4572af0086eaccf52a6a1299bfffb58593206d19bf021ae381f2380bbfeb4371586cd53706ff6dde3d240238b2caf19b96c57dfc2f4524e36
 SHA512 (wasi-sdk-20.tar.gz) = 95be9d9b41ed1f7884e9cd68bad22abbb355b049fd09731c89b9e36666d0205b1a16ec9c21820adf0c5a34e2048015cbfbef0542170d466fa3336c636873c405
+SHA512 (cbindgen-vendor.tar.xz) = 2b8db32c0bca2fa27304ee4fd3a5cc38bc43a11500b23842747813d221e55719c51cf4c0e027e41857f58ce1e283ce97b69c2c7d1eae93ecbb08c2f729e2bf55
 SHA512 (nss-3.112.0-1.el9_4.src.rpm) = 6386239e79f8095b05270b3c8b76ac9203b0df196921b64b779f832f0c04fc8c86624a98d85d39372b07e361278c400f52ef653e14ebeab9db49429e69153ff2
 SHA512 (nss-3.112.0-4.el8_2.src.rpm) = 59cca3df7a0ec6a731f4a36f8f560d496d240da0c16650f047ae686e683b883dc2630aedbe46a8b2cb21662c15f03f1efbe99da42055cc3a5418da4839e28da2
 SHA512 (nspr-4.36.0-2.el8_2.src.rpm) = fcc720afd2453a5110975fac9dd06f636491234780b62cbfcc235a485b4935e97c4f438292c686d27d9dc86b56f43399c024bee4fffcdff5f27c62d105310645
-SHA512 (cbindgen-vendor.tar.xz) = 2b8db32c0bca2fa27304ee4fd3a5cc38bc43a11500b23842747813d221e55719c51cf4c0e027e41857f58ce1e283ce97b69c2c7d1eae93ecbb08c2f729e2bf55
-SHA512 (firefox-140.9.0esr.processed-source.tar.xz) = 87aa87b1e6608b71ee97a16aaeca3b9222684f3e15a3e3e8821f41955da13b03956718a1fc8c9ae20d844e881903797f6c16aa179e39ed2722dd7ebe6a478293
-SHA512 (firefox-langpacks-140.9.0esr-20260318.tar.xz) = ab7de95bed4aa17d1f1b13a6aa19477015c886328dd91c69e4f1150d836a01385f23710e58de751156f3b08d689e4dbbabd5fad76b559debc8ad1400c957861b
+SHA512 (firefox-140.9.1esr.processed-source.tar.xz) = d1a6be61c11db9f7fdb845582e5e2cf1c4a4c0d07c42ccba1927c846e3db86ca50fc08955a84c8cfa1f63d132619f060714b844dbcea2938f4e9d078f7f79d2a
+SHA512 (firefox-langpacks-140.9.1esr-20260408.tar.xz) = 8cc1bff10b10d87713b4279e123a114e5b8263bc2f9d64d596653025775c6101151bd5268a8733e22b5e06bd60b1713b6989f6ba8ad8af6edc867d9f80a45244