diff --git a/extra/firefox-bin/build b/extra/firefox-bin/build
deleted file mode 100755
index 66e8b426..00000000
--- a/extra/firefox-bin/build
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/bin/sh -e
-
-cp -r usr "$1/usr"
diff --git a/extra/firefox-bin/checksums b/extra/firefox-bin/checksums
deleted file mode 100644
index 9a4cdba5..00000000
--- a/extra/firefox-bin/checksums
+++ /dev/null
@@ -1 +0,0 @@
-2961676ba90c8014f14be1e63625079a878652f1a78d9fc0fc3506418fff4f75
diff --git a/extra/firefox-bin/depends b/extra/firefox-bin/depends
deleted file mode 100644
index f133df60..00000000
--- a/extra/firefox-bin/depends
+++ /dev/null
@@ -1,39 +0,0 @@
-alsa-lib
-atk
-bzip2
-cairo
-expat
-ffmpeg
-fontconfig
-freetype-harfbuzz
-fribidi
-gdk-pixbuf
-glib
-gtk+3
-libICE
-libSM
-libX11
-libXau
-libXcomposite
-libXcursor
-libXdamage
-libXext
-libXfixes
-libXi
-libXinerama
-libXrandr
-libXrender
-libXt
-libXxf86vm
-libdrm
-libepoxy
-libffi
-libjpeg-turbo
-libpng
-libvpx
-libxcb
-libxshmfence
-mesa
-pango
-pixman
-zlib
diff --git a/extra/firefox-bin/sources b/extra/firefox-bin/sources
deleted file mode 100644
index 6a8c4e73..00000000
--- a/extra/firefox-bin/sources
+++ /dev/null
@@ -1 +0,0 @@
-https://github.com/kisslinux/repo/releases/download/2020.9-2/firefox.81.0-1.tar.gz
diff --git a/extra/firefox-bin/version b/extra/firefox-bin/version
deleted file mode 100644
index 34e395fe..00000000
--- a/extra/firefox-bin/version
+++ /dev/null
@@ -1 +0,0 @@
-81.0 1
diff --git a/extra/firefox-esr-bin/build b/extra/firefox-esr-bin/build
deleted file mode 100755
index 66e8b426..00000000
--- a/extra/firefox-esr-bin/build
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/bin/sh -e
-
-cp -r usr "$1/usr"
diff --git a/extra/firefox-esr-bin/checksums b/extra/firefox-esr-bin/checksums
deleted file mode 100644
index 8e9cc092..00000000
--- a/extra/firefox-esr-bin/checksums
+++ /dev/null
@@ -1 +0,0 @@
-0d8a77235149860331a5dbebdc4bf6834657113cbe1e391a5bffe3b1b17d4ce9
diff --git a/extra/firefox-esr-bin/depends b/extra/firefox-esr-bin/depends
deleted file mode 100644
index f133df60..00000000
--- a/extra/firefox-esr-bin/depends
+++ /dev/null
@@ -1,39 +0,0 @@
-alsa-lib
-atk
-bzip2
-cairo
-expat
-ffmpeg
-fontconfig
-freetype-harfbuzz
-fribidi
-gdk-pixbuf
-glib
-gtk+3
-libICE
-libSM
-libX11
-libXau
-libXcomposite
-libXcursor
-libXdamage
-libXext
-libXfixes
-libXi
-libXinerama
-libXrandr
-libXrender
-libXt
-libXxf86vm
-libdrm
-libepoxy
-libffi
-libjpeg-turbo
-libpng
-libvpx
-libxcb
-libxshmfence
-mesa
-pango
-pixman
-zlib
diff --git a/extra/firefox-esr-bin/sources b/extra/firefox-esr-bin/sources
deleted file mode 100644
index 218c9359..00000000
--- a/extra/firefox-esr-bin/sources
+++ /dev/null
@@ -1 +0,0 @@
-https://github.com/kisslinux/repo/releases/download/2020.9-2/firefox-esr.78.3.0esr-1.tar.gz
diff --git a/extra/firefox-esr-bin/version b/extra/firefox-esr-bin/version
deleted file mode 100644
index bc5b1b26..00000000
--- a/extra/firefox-esr-bin/version
+++ /dev/null
@@ -1 +0,0 @@
-78.3.0esr 1