diff --git a/network/web/firefox/actions.py b/network/web/firefox/actions.py
index 0c65240c8e..7e23b0f5d6 100644
--- a/network/web/firefox/actions.py
+++ b/network/web/firefox/actions.py
@@ -70,11 +70,12 @@ def build():
     shelltools.system("./mach package")
     shelltools.system("LLVM_PROFDATA=llvm-profdata \
                        JARLOG_FILE='%s/jarlog' \
+                       dbus-run-session \
                        xvfb-run -s '-screen 0 1920x1080x24 -nolisten local' \
                        ./mach python3 build/pgo/profileserver.py" %get.curDIR())
     
     shelltools.system("echo 'Removing instrumented browser...'")    
-    shelltools.system("./mach clobber")
+    shelltools.system("./mach clobber objdir")
     
     shelltools.system("echo 'Building optimized browser...'")  
     shelltools.system("rm .mozconfig")
diff --git a/network/web/firefox/files/mozconfig-opt b/network/web/firefox/files/mozconfig-opt
index 5c8cd7ced4..999df974c6 100644
--- a/network/web/firefox/files/mozconfig-opt
+++ b/network/web/firefox/files/mozconfig-opt
@@ -59,7 +59,7 @@ ac_add_options --disable-tests
 # New MP4, etc
 ac_add_options --enable-rust-simd
 
-ac_add_options --enable-lto=cross
+ac_add_options --enable-lto=cross,full
 ac_add_options --enable-profile-use=cross
 ac_add_options --with-pgo-profile-path=%%PWD%%/merged.profdata
 ac_add_options --with-pgo-jarlog=%%PWD%%/jarlog
diff --git a/network/web/firefox/files/pisilinux/distribution.ini b/network/web/firefox/files/pisilinux/distribution.ini
index 9439c63336..0f1ab4cc4c 100644
--- a/network/web/firefox/files/pisilinux/distribution.ini
+++ b/network/web/firefox/files/pisilinux/distribution.ini
@@ -1,6 +1,6 @@
 [Global]
 id=PisiLinux
-version=2.4.3
+version=2.4.4
 about=Mozilla Firefox for PisiLinux
 
 [Preferences]
diff --git a/network/web/firefox/pspec.xml b/network/web/firefox/pspec.xml
index d53191d00e..3e7a3e4cfd 100644
--- a/network/web/firefox/pspec.xml
+++ b/network/web/firefox/pspec.xml
@@ -15,7 +15,7 @@
         <IsA>app:gui</IsA>
         <Summary>Firefox Web Browser</Summary>
         <Description>It is more secure and faster to browse the web with Firefox web browser. You can personalize your web browser with many specifications that is not enough to explain in two sentences.</Description>
-        <Archive sha1sum="d431efacd74eb439f447c55df8d01fb724a31dec" type="tarxz">https://ftp.mozilla.org/pub/firefox/releases/151.0/source/firefox-151.0.source.tar.xz</Archive>
+        <Archive sha1sum="12a37fad290adeb89a4f259a286f4d2ce1c5f765" type="tarxz">https://ftp.mozilla.org/pub/firefox/releases/151.0.3/source/firefox-151.0.3.source.tar.xz</Archive>
         <AdditionalFiles>
             <!--Our main configure script. Configure paramters are stored here.-->
 <!--             <AdditionalFile target=".mozconfig" permission="0644">mozconfig</AdditionalFile> -->
@@ -568,6 +568,13 @@
     </Package>
 
     <History>
+        <Update release="173">
+            <Date>2026-06-03</Date>
+            <Version>151.0.3</Version>
+            <Comment>Version bump.</Comment>
+            <Name>Pisi Linux Community</Name>
+            <Email>admin@pisilinux.org</Email>
+        </Update>
         <Update release="172">
             <Date>2026-05-18</Date>
             <Version>151.0</Version>