diff --git a/www-client/waterfox/waterfox_bin-6.5.11.recipe b/www-client/waterfox/waterfox_bin-6.6.3.recipe
similarity index 93%
rename from www-client/waterfox/waterfox_bin-6.5.11.recipe
rename to www-client/waterfox/waterfox_bin-6.6.3.recipe
index fed5edf13..40cbb6077 100644
--- a/www-client/waterfox/waterfox_bin-6.5.11.recipe
+++ b/www-client/waterfox/waterfox_bin-6.6.3.recipe
@@ -14,8 +14,8 @@ HOMEPAGE="https://www.waterfox.net/"
 COPYRIGHT="1995-2025 Mozilla Developers, BrowserWorks"
 LICENSE="MPL v2.0"
 REVISION="1"
-SOURCE_URI="https://github.com/threedeyes/Gecko4Haiku/releases/download/$portVersion/waterfox-$portVersion.en-US.haiku-x86_64.tar.bz2#noarchive"
-CHECKSUM_SHA256="364388c7cb7348ea60aca16113a6022b0c7370e8b9919c500ad4ccd682ec7da4"
+SOURCE_URI="https://github.com/threedeyes/Gecko4Haiku/releases/download/$portVersion/waterfox-$portVersion.en-US.haiku-x86_64.tar.xz#noarchive"
+CHECKSUM_SHA256="9d1afb6ea7478dd818c382be64cdb29a2f8005e34f652d42935b49ccdc75c653"
 PATCHES="waterfox_launcher-$portVersion.patchset"
 ADDITIONAL_FILES="
 	waterfox.rdef.in
@@ -62,7 +62,7 @@ BUILD_REQUIRES="
 BUILD_PREREQUIRES="
 	cmd:gcc
 	cmd:tar
-	cmd:bzip2
+	cmd:xz
 	"
 
 BUILD()
@@ -74,7 +74,7 @@ BUILD()
 INSTALL()
 {
 	mkdir -p $appsDir
-	tar -xvjf waterfox-$portVersion.en-US.haiku-x86_64.tar.bz2 -C $appsDir
+	tar -xJf waterfox-$portVersion.en-US.haiku-x86_64.tar.xz -C $appsDir
 
 	mv $appsDir/waterfox $appsDir/Waterfox
 	mv $appsDir/Waterfox/waterfox $appsDir/Waterfox/Waterfox
@@ -85,7 +85,6 @@ INSTALL()
 	cd $appsDir/Waterfox
 	mv \
 		libgkcodecs.so       \
-		libipcclientcerts.so \
 		liblgpllibs.so       \
 		libmozavcodec.so     \
 		libmozavutil.so      \