$ git diff --patch-with-stat --summary 7a14f952c033d3c5dfca84c437dc51e94497b423..3a5b2c53b712de37dac40aef48ab39229e9b3faa

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

diff --git a/.abf.yml b/.abf.yml
index 3e7e728..4644ae2 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: 58f8bda1cd11f1396237b55bd619ed022d6432e6
+  ast.xpi: 403867c5bc7b984ea76147918ea58aecf7ec783f
+  be.xpi: fe07df907508adad0b6269507a98dbb00cbdaef2
+  bg.xpi: a47b9349a0625629d8c28eb5bd9fbb9c095f874e
+  br.xpi: 27f448a07b819f661c518cc84a89f95c4ec82e93
+  ca.xpi: 6afe381ba41c5d4be4d282d06bf7d85b703b1987
+  cs.xpi: c2fbde66f630c7a7973a34553b7804cf28e10a55
+  da.xpi: 8777fb7476165535e8ba14144740d5560615cdf1
+  de.xpi: 1429564eb2081b53e136343a266698c96a292aaf
+  el.xpi: 58b59e5f4414eb053a5879538fc3d509fc8856c6
+  en-GB.xpi: eb051dca6bcbac794a03d0006ea63b5046b5cea6
+  en-US.xpi: 8a16be66980b2063c98aa657fd5ede190581b518
+  es-AR.xpi: 21c9f9bb93a47501eb36063f18aad7e568d5b4a2
+  es-ES.xpi: 632494d7fdadb0ec8ee599d56092dae4d47757de
+  et.xpi: 0d72844e5425c3dd91a148a519403e54c485f98b
+  eu.xpi: 8f12852548d362f1f88358c0dc226c26d3557b17
+  fi.xpi: 435e4d699433317db2710bbb276439d48bea1beb
+  fr.xpi: 2b318759e410e014d3d401b2f612ea60a5bbf23e
+  fy-NL.xpi: 85f73b03e0648848ae9f582edaad29bf1d813696
+  ga-IE.xpi: f25a2dee38d52382c7ef5088c20fd03c1307701e
+  gd.xpi: 563eec6b2176abd2c4cd2c0b0d95b43e9f7f21b0
+  gl.xpi: 9c5a3d9c7dfd762d54b663ff154a3a0d1755bf2e
+  he.xpi: 062517dbe1d516598ed2fad47e87d6234aeaf077
+  hr.xpi: 43cb0b80920b7f9f5be74eea90aeb0e86f8b7345
+  hu.xpi: ec4a1272edaf0563ad0268c261869a6c71cc3e54
+  hy-AM.xpi: 8622ea2ba7a942b98025c4a01f11a2f49fa443d7
+  id.xpi: 86282919d6abe4d3a4eb7175f6f93631de7260de
+  is.xpi: 65b3c041084909b30a84945b0d5ffb6e09e5e445
+  it.xpi: 7381e0ad17674ec2222cd415e4c41eb6ed0fdb97
+  ja.xpi: e7ed08360b559001c581e1944c9f3b139839c4c9
+  ko.xpi: 5d9fad8832efe2bfc1005b5bec52af1c30c956ae
+  lt.xpi: 80d2af3c1840a4860c6db7246fa69bf0683f6d92
+  nb-NO.xpi: d004b1ab0a4dc8e747b77676f0eb42e1dcf0157e
+  nl.xpi: 6f0020d910859cc4208bae2f0dac49242d6554bd
+  nn-NO.xpi: b3dd0fcad3d67cecabd55ff75af9d5c791fba7e4
+  pl.xpi: 23f9200d3c46b51a3a1e4cc6de751dd3575bdc31
+  pt-BR.xpi: 0ae16c5e2a3887a3fc996b99be4fdd3b20f64cfc
+  pt-PT.xpi: bc79a2ddb1ee0d820e4200056aeb195a2e2ed93f
+  ro.xpi: f24aa35572fa45f402103e90b1b3c88bbc233883
+  ru.xpi: 8cef0f099da5a227f1c878890359991b422ef4ce
+  sk.xpi: 0a27b862d5125b96dd4442e334e6ae69a9bf8d6f
+  sl.xpi: afb934a88e0cb661cf8c366e4abce8cec9dd0774
+  sq.xpi: ecbf8ae6be0cf2c900bc8837c76a8ab65989c7df
+  sr.xpi: 4129fae86c0edb43a90b48a8783842640384164f
+  sv-SE.xpi: f05d168041ea095ec917abe9a04fb149150bd775
+  thunderbird-91.0.2.source.tar.xz: 307c313ab13084bf930b25098105e71515f3059f
+  tr.xpi: a685ec7632444114870e5497077e137ca0776df8
+  uk.xpi: 9e5296b9ccff614b9b7db046fa1af99290ed6b26
+  vi.xpi: 2882627006666004d4a59885b5123090be27dd51
+  zh-CN.xpi: cabcfe477f06cd93b2b64c05e660885846388537
+  zh-TW.xpi: c87ecd113dd6b958dbf3722ec8052dac5757c1ca
diff --git a/thunderbird.spec b/thunderbird.spec
index 93a3b62..eab4d80 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:	91.0.2
 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}