diff --git a/linux/build/build b/linux/build/build
index 9646600..3c29d74 100755
--- a/linux/build/build
+++ b/linux/build/build
@@ -4,6 +4,8 @@
 # This file is part of Purple I2P project and licensed under BSD3
 # See full license text in LICENSE file at top of project tree
 
+set -e
+
 dir=${0%/*}
 if [ "$dir" = "$0" ]; then
   dir="."
@@ -12,7 +14,7 @@ cd $dir
 
 arch=$(uname -m)
 language=$(echo $LANG | cut -c-5 | sed s/_/-/g)
-version="115.20.0esr"
+version="140.5.0esr"
 application="firefox"
 ftpmirror="https://ftp.mozilla.org/pub/$application/releases/$version"
 
@@ -33,7 +35,7 @@ fi
 
 echo "This script is preparing $application $version for use with I2Pd"
 
-file="$application-$version.tar.bz2"
+file="$application-$version.tar.xz"
 filepath="linux-$arch/$language/$file"
 
 echo "Downloading $application..."
@@ -75,22 +77,38 @@ else
 fi
 
 echo "Extracting archive, please wait..."
-tar xfj $file
+tar xfJ $file
 rm $file
-mv $application ../browser
-mkdir ../browser/data
+
+if [ -d ../browser ]; then
+	echo "Warning: ../browser directory already exists and will be removed!"
+	read -p "Do you want to remove all existing browser data? (y/N): " confirm
+	if [ "$confirm" != "y" ] && [ "$confirm" != "Y" ]; then
+		echo "Aborting. Please backup or remove ../browser manually."
+		exit 1
+	fi
+	rm -rf ../browser
+fi
+
+mv $application browser
+mv browser ../
+mkdir -p ../browser/data
 
 # Deleting some not needed files
 rm ../browser/crashreporter*
-rm ../browser/minidump-analyzer
+rm ../browser/crashhelper
+rm -f ../browser/minidump-analyzer
 rm ../browser/pingsender
 rm ../browser/precomplete
-rm ../browser/removed-files
-rm ../browser/update*
-rm ../browser/Throbber-small.gif
-rm ../browser/browser/crashreporter-override.ini
-rm ../browser/browser/features/formautofill@mozilla.org.xpi
-rm ../browser/browser/features/screenshots@mozilla.org.xpi
+rm -f ../browser/removed-files
+rm -f ../browser/update*
+rm ../browser/glxtest
+rm ../browser/vaapitest
+rm ../browser/*.sig
+rm -f ../browser/Throbber-small.gif
+rm -f ../browser/browser/crashreporter-override.ini
+rm -f ../browser/browser/features/formautofill@mozilla.org.xpi
+rm -f ../browser/browser/features/screenshots@mozilla.org.xpi
 rm -r ../browser/icons
 # And edit some places
 sed -i 's/Enabled=1/Enabled=0/g' ../browser/application.ini
@@ -99,13 +117,13 @@ sed -i 's/ServerURL=.*/ServerURL=-/' ../browser/application.ini
 
 echo "Downloading language packs..."
 mkdir ../browser/browser/extensions
-curl -L -f -# -o ../browser/browser/extensions/langpack-ru@firefox.mozilla.org.xpi https://addons.mozilla.org/firefox/downloads/file/4144376/russian_ru_language_pack-115.0.20230726.201356.xpi
-curl -L -f -# -o ../browser/browser/extensions/ruspell-wiktionary@addons.mozilla.org.xpi https://addons.mozilla.org/firefox/downloads/file/4215701/2696307-1.77.xpi
-curl -L -f -# -o ../browser/browser/extensions/langpack-en-US@firefox.mozilla.org.xpi https://addons.mozilla.org/firefox/downloads/file/4144407/english_us_language_pack-115.0.20230726.201356.xpi
-curl -L -f -# -o ../browser/browser/extensions/en-US@dictionaries.addons.mozilla.org.xpi https://addons.mozilla.org/firefox/downloads/file/4175230/us_english_dictionary-115.0.xpi
+curl -L -f -# -o ../browser/browser/extensions/langpack-ru@firefox.mozilla.org.xpi https://addons.mozilla.org/firefox/downloads/file/4144376
+curl -L -f -# -o ../browser/browser/extensions/ruspell-wiktionary@addons.mozilla.org.xpi https://addons.mozilla.org/firefox/downloads/file/4215701
+curl -L -f -# -o ../browser/browser/extensions/langpack-en-US@firefox.mozilla.org.xpi https://addons.mozilla.org/firefox/downloads/file/4144407
+curl -L -f -# -o ../browser/browser/extensions/en-US@dictionaries.addons.mozilla.org.xpi https://addons.mozilla.org/firefox/downloads/file/4175230
 
 echo "Downloading NoScript extension..."
-curl -L -f -# -o ../browser/browser/extensions/{73a6fe31-595d-460b-a920-fcc0f8843232}.xpi https://addons.mozilla.org/firefox/downloads/file/4411102/noscript-12.1.1.xpi
+curl -L -f -# -o ../browser/browser/extensions/{73a6fe31-595d-460b-a920-fcc0f8843232}.xpi https://addons.mozilla.org/firefox/downloads/file/4411102
 
 echo "Adding standard configs..."
 cp -r preferences/* ../browser/