$ git diff --patch-with-stat --summary 7a14f952c033d3c5dfca84c437dc51e94497b423..33e2038754480eba8f270ee3a3058eeda2691a74

 .abf.yml         | 103 +++++++++++++++++++++++++++----------------------------
 thunderbird.spec |  19 +++++-----
 2 files changed, 61 insertions(+), 61 deletions(-)

diff --git a/.abf.yml b/.abf.yml
index 3e7e728..db40256 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: 4fa010d49880ed5e92246efd669a419f5ac892cc
+  ast.xpi: 76d26712d9b01c80e1b866459d688e8a5a781ed2
+  be.xpi: 132325fe4d9c703e5c0699a1ef2fb929b355bfd7
+  bg.xpi: dff749b50d1cbcba8bcf3027511ade1d26b59c4a
+  br.xpi: 4b2ddcf535ad2c3ba511af52df959551a38598a1
+  ca.xpi: 2265e02597e8d92eeff8f89542c92fb07f4eb11d
+  cs.xpi: ace4dc4337f71157a575e83fe446ca218638d53b
+  da.xpi: d14756bdbc9bdeb73ec57c1fb7d082eb30b82f24
+  de.xpi: fc6e418da282bbc227bdeaa59fef4cf08cd4ade4
+  el.xpi: 7b27592e8abf36753e2cd4dafb4c19953f3cbd65
+  en-GB.xpi: 95758f7112d18d65aa672869445e36fdbf506e9a
+  en-US.xpi: 8916fd90d143aed9fbc2359bc8dba45765f60502
+  es-AR.xpi: 6fb38b68cae1ed7694dde220598da4be36b771a4
+  es-ES.xpi: ed8e8372f588afd8e37bfcfe08717c559bf6f861
+  et.xpi: a06ccc1dbafd328d1a744f3223f5ad7b9f151933
+  eu.xpi: 2e0af991a3936d6305419a0694174a804ce96718
+  fi.xpi: 16736d0cfc1744cf6b82e668ebb22e1a3e7b9570
+  fr.xpi: 8b3e6ce1f8076680d8a13016ffa4f05f14cb6548
+  fy-NL.xpi: 26fddf9d019f9a3756555207a2c33c92ff542c43
+  ga-IE.xpi: 3eeb8fde288c7068040e854aa6fe7825e5d66345
+  gd.xpi: 1ca0049cb0bf405940121bdb9b24a96be54afe3f
+  gl.xpi: c532af0915e7d11d095059e5f3c75197445cd2db
+  he.xpi: 428848153a73fe7f3aa2d018aa4c78e83384a098
+  hr.xpi: c7fa6ae5f0dcde63a945eccde9a2c59fe4c36afa
+  hu.xpi: b1000ae84de6391311e0eb9b69e16721b53fc266
+  hy-AM.xpi: a24e9ee97fda8878ab3c8ab3edd2e47ebf7d5604
+  id.xpi: d50f8784ed78485a96f6e0fb9829b4cfb0074188
+  is.xpi: c58c86299d8e34abe0f5a9ef06f9a5bc2e6b6a77
+  it.xpi: fb0edfee44257eb079ec75e5a9f42da4791645ea
+  ja.xpi: f7bb00eed64ea5abf726d3eb8ea65267509957da
+  ko.xpi: 76fd73f9cff8cdbe32c59f65846f38e5f53e4ff7
+  lt.xpi: 7d948dd5eac89fa3c84442bab80afbb8ffe669bd
+  nb-NO.xpi: 24db848fe0581bfedfc2483f4ba03f62677bc610
+  nl.xpi: bae064265bd6eec1e9731e1f3a932a5bf8d92788
+  nn-NO.xpi: 0917ab95680ab4436c594c485d124656ffc80a38
+  pl.xpi: c236a752239463077446e0961cdbd0d29350af74
+  pt-BR.xpi: a1387cc489bf28eda384a29cace527f10640763c
+  pt-PT.xpi: 49785340c333bcfa355a302bb1f32f0aa2830b98
+  ro.xpi: 08973c196e96e9f79844d9a1e42603f7a96233fd
+  ru.xpi: a01588f7c7f461f2a8ef5a0ade281ae7e10277d3
+  sk.xpi: 1d2f17174a233421d72f7f86ada104c39105030f
+  sl.xpi: 82a924d1674aa063cfb423fab0fbc3330f67ccb8
+  sq.xpi: 7cccbd12cb234796e3a58682bd89d6816383f4ba
+  sr.xpi: f51ad8485d3cb6c75628a73e56ff00680273efb1
+  sv-SE.xpi: 1ae13eb11f06b0ef0809a4fab3afe42de7fbca4b
+  thunderbird-91.1.0.source.tar.xz: b37dfbf5ee264defb65e585cf58283d2a79c9562
+  tr.xpi: 3de971a46b9c5e4a6517599f7ba5e965f1472f6c
+  uk.xpi: d6ff4b51a978bdbbcc43decabf72ae89c7b94d76
+  vi.xpi: afe5ab6b0ad5101fa7c05b40f886f892cb5f0052
+  zh-CN.xpi: e290af8f2dcc6790ebea9ab0e07d7a50826b0802
+  zh-TW.xpi: 0dcedb1453d4af7a5c8707bb0ad032a0d714801b
diff --git a/thunderbird.spec b/thunderbird.spec
index 93a3b62..8b56cb5 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:	91.1.0
 Release:	1
 License:	MPL
 Group:		Networking/Mail
@@ -248,7 +248,6 @@ Patch300:       mozilla-thunderbird-0.8-progname.patch
 Patch304:       mozilla-thunderbird-run-mozilla.patch
 # OpenSuse patches (Patch400+)
 
-BuildRequires:	autoconf2.1
 BuildRequires:	gzip
 BuildRequires:	python
 BuildRequires:	unzip
@@ -265,8 +264,6 @@ BuildRequires:	pkgconfig(dbus-glib-1)
 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 +383,6 @@ 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 +424,17 @@ 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 +543,8 @@ 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}