$ git diff --patch-with-stat --summary 7a14f952c033d3c5dfca84c437dc51e94497b423..681b1b45f37768d8be21c22c5686d47403313f7a

 .abf.yml         | 103 +++++++++++++++++++++++++++----------------------------
 thunderbird.spec |  17 +++++----
 2 files changed, 61 insertions(+), 59 deletions(-)

diff --git a/.abf.yml b/.abf.yml
index 3e7e728..cbcf091 100644
--- a/.abf.yml
+++ b/.abf.yml
@@ -1,53 +1,52 @@
 sources:
-  ar.xpi: 3c053e4319dc78bdb2d23f82262cd2daa6ec593d
-  ast.xpi: c9c779ea5816012715cb1d6267faff109b3ff125
-  be.xpi: 38f33975895a6f1fa213d729b3e8c28ac7586b98
-  bg.xpi: d82314d73c74b03d4f85e5949dc77134207bdb21
-  br.xpi: da06a89bf5f6ab13f83b2def97cca32a646a61c2
-  ca.xpi: bc66d408a7fc2d6d78757038afd95c5e8ab13320
-  cs.xpi: b3c97e480b905cd8c4f0266212965be583cb89b6
-  da.xpi: 80c9582b5553a0cc4de98b1aa02dbe26099d803f
-  de.xpi: a11c47d2f22e6b2bf6ab0dd260ac73704d204bb2
-  el.xpi: 3aa1547ca7a3b44148d31a6da7ce3605cf1ed44a
-  en-GB.xpi: 2f4538296a0545d70a1cd8813b2c1e233fa36675
-  en-US.xpi: 7e610da5c8b5962a332765a95077218deb73ed58
-  es-AR.xpi: 76c75f6e94c8b07923d1754f67e77c8a617e22f4
-  es-ES.xpi: 93fe1898043a60e29faba277ca3fbd557ead5cd2
-  et.xpi: 705d6c567c301bb6fc957a2a7ed5d9cf23d9c134
-  eu.xpi: f08fc759ebd1b5b44d3b07e9ac264930bcf52be6
-  fi.xpi: df203d2e17fc649c7636bd7cd5166872fe57ebad
-  fr.xpi: af7ca9f0931e70333e133f306fd38d015142044d
-  fy-NL.xpi: 2d107727df80026dc3443f38619b3b966776b524
-  ga-IE.xpi: 58134eb6f72180180b8f1d370b0872b31d11c9c3
-  gd.xpi: dd0a3aa59b630739de0c7b7333426eda74e3df19
-  gl.xpi: d4c1e480ffa709fb51f316ad3c33cb036c2decd1
-  he.xpi: b7a4fdc7e03d6ae705a82ab96139d36101dd9061
-  hr.xpi: 08e4eaf843f463c9419abfe8586f555894eb5e2b
-  hu.xpi: c4d80807715f54447467078f23c7452d1352e9ba
-  hy-AM.xpi: 75aecaba58e9eba6a290fb42bac063630a63ac3e
-  id.xpi: 82dac351f5264d90bfdd6b45748a3ea656e82949
-  is.xpi: 7bca2c2ec081c6545f92ad8cdf2ce7643c275f4e
-  it.xpi: 82afbc170f3ded69aab2064c0c863e75128a1dfa
-  ja.xpi: 39c38051aac26176102f902ca76bd15166c59124
-  ko.xpi: 58bd3334004f3d0595bb205fa37dd0098db6b1d7
-  lt.xpi: 17c148ae6f12d6133ff1e827f5f563aed5d1879f
-  nb-NO.xpi: ea93575aa0fbce948a270bec177a42d2df5a6de5
-  nl.xpi: 4b0c7cbdff35d376d525e430fd71090c7537d451
-  nn-NO.xpi: 4a6cb51a4d61465cd8f3b6b0e83197edf0ad6751
-  pl.xpi: 8f1d9c669903dfcf7ec463117c27036480136cd9
-  pt-BR.xpi: 1b6594f1b8148eadf921928ab336e28a6c30685e
-  pt-PT.xpi: 02aadc0917e4146022bcd5ebd3cf89150d5b2c48
-  ro.xpi: 559ecbde3bf5967f02eb2b5c9f14cccdd887b7ea
-  ru.xpi: 495d5c28836e229dfaebb0dd322654bc4d9619b8
-  si.xpi: 72483a61e8584e411483b746c7b0ae476dd764de
-  sk.xpi: 1f45ed8324182f44ac6dd83d66465ef7c72ba058
-  sl.xpi: 224feb2905f004effc868feb192cfa1be6b5ea42
-  sq.xpi: 4a9e2c4b241e00bd5069f1dcef4e1593530f01ba
-  sr.xpi: 5474343de39720d818d9eaa300e498ebf4cbc8ff
-  sv-SE.xpi: d9e722b2b041a28f4000ce0125b447f4d2b3e7b4
-  thunderbird-78.12.0.source.tar.xz: 98228bff32bf6cb7e0e34eb135a800d3200881c1
-  tr.xpi: c34ac62c2c26462a1fdbabc5db5ae948591106c0
-  uk.xpi: 6b669a90263bdabd6799edbd62f3303390264bdb
-  vi.xpi: 43ec05ab3f6cd1b13d8735176d58bc9a5cf3597d
-  zh-CN.xpi: 57e8c512aab0ed97fc382ada062b9b043df733a8
-  zh-TW.xpi: d14daa3c7622156f1a46952a41b5ba53fcb59b65
+  ar.xpi: a64f65e531374d4a5e167edb92de7e41c11cf425
+  ast.xpi: 0529b1853b54cb8fa395d05a57e950f43dc2a516
+  be.xpi: ae6933a05be2b14c5b8853c012c2a822cf16643b
+  bg.xpi: 02bb39ea58b6ac4dca587ebf4f40e276d2306c0a
+  br.xpi: 9823acfe42eb8f331a5554fdce2ecd86977964b0
+  ca.xpi: 02c2156c3f0dad94a2b379670977d81b45b60f69
+  cs.xpi: 459d915394d4fc4ab5ca733ed52cc0c5c65c98c8
+  da.xpi: 45cccefd60b5c3f3f185b0581cb08c5a5efc7141
+  de.xpi: 8b478cfb36b81c5edd870fd22a12ee618a778eb0
+  el.xpi: c4c9cac28a5868f1c9aa701371ef825d567d0710
+  en-GB.xpi: aee9d35866d529090e87a3c8632d888ed7ecb0cc
+  en-US.xpi: f16cef81fcdf6d7b186af3a0a8a834a454ad494d
+  es-AR.xpi: 82fa6e0fd82d328213a17c26cf47bc3226d86ee0
+  es-ES.xpi: 5aa7097f2d567acb1ff1a699a4259faf25d6288c
+  et.xpi: e69fecc4a88c694883c8523fe122c065bdb9dfb9
+  eu.xpi: cd74837b736d153ecd231b2818369dc890be0b59
+  fi.xpi: 17438fb22ae4e899a6a32dbcd0da2af68ffdda18
+  fr.xpi: 8560c5be72537f50f3296fd67592542727736f31
+  fy-NL.xpi: 68f9c8f0fb40264b969ea86ceb4d482ddff90219
+  ga-IE.xpi: c3d21ec7e32e6264ab17432161abe0e8add2b420
+  gd.xpi: 7feb1f3edb9f4ef87ae708f2f332be4f2d0b6901
+  gl.xpi: 372748021793f6ddcbbe005c9322c20fc1724985
+  he.xpi: a8857b464e0d254e4019747eac7f4e89ac65692d
+  hr.xpi: 21dc9cd8e70e46a55ce3145863605c80f66a7878
+  hu.xpi: eba965e5809d560d74c6d13085328fe2017c47ed
+  hy-AM.xpi: 6a51e7130bbe6f6a6c07b8b3795dcdb62b2fc388
+  id.xpi: 5187b55f908a9297204408e78572f0feeff9af5d
+  is.xpi: e54bff5434a226d1f76cd7c91d08b97a25cb8b34
+  it.xpi: 620218a5a704ec3c53ba73849b9902f3a40fb74a
+  ja.xpi: 7f3ff94959c1f0480442b7a231054935be270e07
+  ko.xpi: 4d8069ec220e4c1bcee620ac842068bb6559c894
+  lt.xpi: bc247c08db424d2f20a6075ff3e6192965903d92
+  nb-NO.xpi: c2d13e87ffcc955bee4f85288afcaab6759b7974
+  nl.xpi: 287708e9faf754508238fc0e9e062d094c54236a
+  nn-NO.xpi: 7f6308337f4a4aec7740d10116f294cbfcf7b4c5
+  pl.xpi: 6bb431b8fc7a3888ee350953ff701c7fc41c4fc0
+  pt-BR.xpi: 527e692d6924d5535a27813f566bbe700fcfd696
+  pt-PT.xpi: a3ddbcf3ba654edc73e5aaa12dac4760a751266a
+  ro.xpi: 9bb33366a6eb6e493994ae9d3ca77b0a46e1683d
+  ru.xpi: 91038935ed1a760e328de0e1aa3120923128d44f
+  sk.xpi: 48a74dae8dc8a14c80a6826b319de35ec16e1974
+  sl.xpi: 9bc76f8ab9b39929938e00d30bd951911100cd97
+  sq.xpi: 3f114c10160038e451d35efac9372efaec77c9bf
+  sr.xpi: 5959606c257b5372c645e9a23850a828ca04d973
+  sv-SE.xpi: 0781a698cfe841715e2f60083ebe5a5d2767bb5a
+  thunderbird-91.0.3.source.tar.xz: cd3983fd5124eb42961374ca2882156899398daa
+  tr.xpi: 21da2e12aa02389a0a5365d1dc278a81a1884c33
+  uk.xpi: 1c8839982b1a290255d7f38f680c2a135c1e990f
+  vi.xpi: 1ffc10d6dd0bfb3396f3bdc6b300197cdcade0aa
+  zh-CN.xpi: 31c1ed7c76c7181146606fdcc484a74def1dd852
+  zh-TW.xpi: f65208487bbcbf612f5d3da6783ae7545460967d
diff --git a/thunderbird.spec b/thunderbird.spec
index 93a3b62..ebc4a55 100644
--- a/thunderbird.spec
+++ b/thunderbird.spec
@@ -47,7 +47,7 @@
 %define xpidir http://ftp.mozilla.org/pub/mozilla.org/thunderbird/releases/%{version}/linux-x86_64/xpi/
 
 # Supported l10n language lists
-%define langlist  ar ast be bg br ca cs da de el en_GB en_US es_AR es_ES et eu fi fr fy ga gd gl he hr hu hy id is it ja ko lt nb_NO nl nn_NO pl pt_BR pt_PT ro ru si sk sl sq sr sv_SE tr uk vi zh_CN zh_TW
+%define langlist  ar ast be bg br ca cs da de el en_GB en_US es_AR es_ES et eu fi fr fy ga gd gl he hr hu hy id is it ja ko lt nb_NO nl nn_NO pl pt_BR pt_PT ro ru sk sl sq sr sv_SE tr uk vi zh_CN zh_TW
 
 # Disabled l10n languages, for any reason
 %define disabled_langlist gu_IN mk sr af rm
@@ -201,7 +201,7 @@
 
 Summary:	Full-featured email, RSS, and newsgroup client
 Name:		thunderbird
-Version:	78.12.0
+Version:	91.0.3
 Release:	1
 License:	MPL
 Group:		Networking/Mail
@@ -266,7 +266,6 @@ BuildRequires:	pkgconfig(fontconfig)
 BuildRequires:	pkgconfig(freetype2)
 BuildRequires:	pkgconfig(gl)
 BuildRequires:  pkgconfig(gstreamer-plugins-base-1.0)
-BuildRequires:  pkgconfig(gtk+-2.0)
 BuildRequires:  pkgconfig(gtk+-3.0)
 BuildRequires:	pkgconfig(hunspell)
 BuildRequires:	pkgconfig(libevent) >= 1.4.7
@@ -386,7 +385,6 @@ mk_add_options BUILD_OFFICIAL=1
 #mk_add_options MOZ_MAKE_FLAGS="%{_smp_mflags}"
 mk_add_options MOZ_OBJDIR=`pwd`/%{objdir}
 ac_add_options --enable-application=comm/mail
-ac_add_options --enable-calendar
 ac_add_options --prefix="%{_prefix}"
 ac_add_options --libdir="%{_libdir}"
 ac_add_options --with-system-nspr
@@ -428,11 +426,17 @@ ac_add_options --enable-optimize="-O2"
 %endif
 EOF
 
+export MACH_USE_SYSTEM_PYTHON=1
+export MACH_NO_WRITE_TIMES=1
+
 ./mach build
 
 #===============================================================================
 
 %install
+
+export MACH_USE_SYSTEM_PYTHON=1
+
 mkdir -p %{buildroot}{%{_libdir},%{_bindir},%{_datadir}/applications}
 mkdir -p %buildroot%tbdir
 
@@ -541,9 +545,8 @@ fi
 #===============================================================================
 
 %files
-%doc LEGAL
-%attr(755,root,root) %{_bindir}/thunderbird
-%attr(644,root,root) %{_datadir}/applications/*.desktop
+%{_bindir}/thunderbird
+%{_datadir}/applications/*.desktop
 %{tbdir}
 %if %{xpi}
 %dir %{tbextdir}