diff --git a/network/mail/thunderbird/actions.py b/network/mail/thunderbird/actions.py
index 94e929d09f..5f563d8a27 100644
--- a/network/mail/thunderbird/actions.py
+++ b/network/mail/thunderbird/actions.py
@@ -10,13 +10,15 @@ from pisi.actionsapi import pisitools
 from pisi.actionsapi import shelltools
 
 
-ObjDir = "build"
+# ObjDir = "build"
 MOZAPPDIR= "/usr/lib/thunderbird"
 shelltools.export("SHELL", "/bin/sh")
-shelltools.export("MACH_USE_SYSTEM_PYTHON", "1")
+shelltools.export("PYTHON", "/usr/bin/python3")
+# shelltools.export("MACH_USE_SYSTEM_PYTHON", "1")
+shelltools.system("export MACH_BUILD_PYTHON_NATIVE_PACKAGE_SOURCE=none")
 shelltools.export("MOZBUILD_STATE_PATH", "mozbuild")
 
-locales = "ca  da  de  el  en-GB en-US  es-AR  es-ES  fi  fr  hr  hu  it  lt nl  pl  pt-BR  pt-PT  ro  ru  sr  sv-SE  tr  uk".split()
+locales = "be ca  da  de  el  en-GB en-US  es-AR  es-ES  fi  fr  hr  hu  it  lt nl  pl  pt-BR  pt-PT  ro  ru  sr  sv-SE  tr  uk".split()
 xpidir = "%s/xpi" % get.workDIR()
 arch = get.ARCH()
 ver = ".".join(get.srcVERSION().split(".")[:3])
@@ -28,27 +30,27 @@ def setup():
     shelltools.system("rm -rf langpack-tb/*/browser/defaults")
     if not shelltools.isDirectory(xpidir): shelltools.makedirs(xpidir)
     for locale in locales:
-        shelltools.system("wget -c -P %s http://ftp.mozilla.org/pub/mozilla.org/thunderbird/releases/%s/linux-%s/xpi/%s.xpi" % (xpidir, ver, arch, locale))
+        shelltools.system("wget -c -P %s http://ftp.mozilla.org/pub/mozilla.org/thunderbird/releases/%sesr/linux-%s/xpi/%s.xpi" % (xpidir, ver, arch, locale))
 
         shelltools.makedirs("langpack-tb")
         shelltools.system("cp %s/%s.xpi langpack-tb/langpack-%s@thunderbird.mozilla.org.xpi" % (xpidir, locale, locale))
         #shelltools.makedirs("langpack-tb/langpack-%s@thunderbird.mozilla.org" % locale)
         #shelltools.system("unzip -uo %s/%s.xpi -d langpack-tb/langpack-%s@thunderbird.mozilla.org" % (xpidir, locale, locale))
 
-    shelltools.makedirs(ObjDir)
-    shelltools.cd(ObjDir)
-    shelltools.system("../mach configure")
+    # shelltools.makedirs(ObjDir)
+    # shelltools.cd(ObjDir)
+    shelltools.system("./mach configure")
 
 def build():
-    shelltools.cd(ObjDir)
-    shelltools.system("../mach build")
-    shelltools.system("../mach buildsymbols")
+    # shelltools.cd(ObjDir)
+    shelltools.system("./mach build")
+    shelltools.system("./mach buildsymbols")
 
 def install():
-    shelltools.cd(ObjDir)
-    shelltools.system("DESTDIR=%s ../mach install " % get.installDIR())
+    # shelltools.cd(ObjDir)
+    shelltools.system("DESTDIR=%s ./mach install " % get.installDIR())
 
-    shelltools.cd("..")
+    # shelltools.cd("..")
 
     # Install fix language packs
     pisitools.insinto("/usr/lib/thunderbird/extensions", "langpack-tb/*")
diff --git a/network/mail/thunderbird/pspec.xml b/network/mail/thunderbird/pspec.xml
index 5278ebea84..2b00649d84 100644
--- a/network/mail/thunderbird/pspec.xml
+++ b/network/mail/thunderbird/pspec.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" ?>
-<!DOCTYPE PISI SYSTEM "http://www.pisilinux.org/projeler/pisi/pisi-spec.dtd">
+<!DOCTYPE PISI SYSTEM "https://www.pisilinux.org/projeler/pisi/pisi-spec.dtd">
 <PISI>
     <Source>
         <Name>thunderbird</Name>
@@ -15,7 +15,7 @@
         <IsA>app:gui</IsA>
         <Summary>The Stand-Alone Mozilla Mail Component</Summary>
         <Description>Thunderbird is a redesign of the Mozilla Mail Component. It is written using the XUL user interface language and designed to be cross-platform.</Description>
-        <Archive sha1sum="ab442b395cd996f91e50048fd5cb5572e6c47f2f" type="tarxz">https://ftp.mozilla.org/pub/thunderbird/releases/133.0/source/thunderbird-133.0.source.tar.xz</Archive>
+        <Archive sha1sum="4eef82bdeb9804634c0bbc5a154407215ed616ef" type="tarxz">https://ftp.mozilla.org/pub/thunderbird/releases/128.5.2esr/source/thunderbird-128.5.2esr.source.tar.xz</Archive>
         <AdditionalFiles>
             <AdditionalFile target=".mozconfig">pisilinux/mozconfig</AdditionalFile>
         </AdditionalFiles>
@@ -51,6 +51,7 @@
             <Dependency>python3-devel</Dependency>
             <Dependency>llvm-clang-devel</Dependency>
             <Dependency>python3-setuptools</Dependency>
+            <Dependency>python3-psutil</Dependency>
             <Dependency>nodejs</Dependency>
             <Dependency>libuv-devel</Dependency>
             <Dependency>libnotify-devel</Dependency>
@@ -472,11 +473,11 @@
 
     <History>
         <Update release="15">
-            <Date>2025-01-01</Date>
-            <Version>133.0</Version>
+            <Date>2025-01-04</Date>
+            <Version>128.5.2</Version>
             <Comment>Version bump.</Comment>
-            <Name>Bedirhan KURT</Name>
-            <Email>bedirhan.kurt@outlook.com</Email>
+            <Name>Pisi Linux Community</Name>
+            <Email>admin@pisilinux.org</Email>
         </Update>
         <Update release="14">
             <Date>2024-05-02</Date>