diff --git a/gnu/packages/browser-extensions.scm b/gnu/packages/browser-extensions.scm
index 21c519eda31c..9efa94b77396 100644
--- a/gnu/packages/browser-extensions.scm
+++ b/gnu/packages/browser-extensions.scm
@@ -21,6 +21,7 @@
 (define-module (gnu packages browser-extensions)
   #:use-module (guix gexp)
   #:use-module (guix packages)
+  #:use-module (guix download)
   #:use-module (guix git-download)
   #:use-module (guix build-system copy)
   #:use-module (guix build-system gnu)
@@ -221,3 +222,28 @@ (define passff
 
 (define-public passff/icecat
   (make-icecat-extension passff))
+
+(define noscript
+  (package
+    (name "noscript")
+    (version "11.4.28")
+    (source (origin
+              (method url-fetch/zipbomb)
+              (uri (string-append
+                    "https://noscript.net/download/releases/noscript-" version
+                    ".xpi"))
+              (sha256
+               (base32
+                "051wawi0yjyramp743yjawqaz59g3m2gcivm24b44ibd4arpdl2l"))))
+    (build-system copy-build-system)
+    (properties '((addon-id . "{73a6fe31-595d-460b-a920-fcc0f8843232}")))
+    (arguments
+     `(#:install-plan '(("." ,(assq-ref properties 'addon-id)))))
+    (home-page "https://noscript.net")
+    (synopsis "Software providing extra protection for various browsers.")
+    (description "The NoScript Security Suite is a software providing extra
+protection for web browsers.")
+    (license license:gpl3+)))
+
+(define-public noscript/icecat
+  (make-icecat-extension noscript))
diff --git a/gnu/packages/gnupg.scm b/gnu/packages/gnupg.scm
index a5b8587a141c..bec74b3f3f49 100644
--- a/gnu/packages/gnupg.scm
+++ b/gnu/packages/gnupg.scm
@@ -70,7 +70,6 @@ (define-module (gnu packages gnupg)
   #:use-module (gnu packages swig)
   #:use-module (gnu packages texinfo)
   #:use-module (gnu packages tls)
-  #:use-module (gnu packages tor)
   #:use-module (gnu packages web)
   #:use-module (gnu packages xorg)
   #:use-module (gnu packages xdisorg)
@@ -1124,7 +1123,7 @@ (define-public parcimonie
            perl-try-tiny
            perl-type-tiny
            perl-types-path-tiny
-           torsocks))
+           (@ (gnu packages tor) torsocks))) ;avoid dependency loop
     (native-inputs
      (list perl-file-which
            perl-gnupg-interface
diff --git a/gnu/packages/tor.scm b/gnu/packages/tor.scm
index 71f32b3f4331..31e9945f5d39 100644
--- a/gnu/packages/tor.scm
+++ b/gnu/packages/tor.scm
@@ -36,11 +36,15 @@ (define-module (gnu packages tor)
   #:use-module (guix utils)
   #:use-module (guix download)
   #:use-module (guix git-download)
+  #:use-module (guix build-system copy)
   #:use-module (guix build-system gnu)
+  #:use-module (guix build-system mozilla)
   #:use-module (guix build-system python)
   #:use-module (guix build-system pyproject)
   #:use-module (gnu packages)
   #:use-module (gnu packages base)
+  #:use-module (gnu packages bash)
+  #:use-module (gnu packages browser-extensions)
   #:use-module (gnu packages libevent)
   #:use-module (gnu packages linux)
   #:use-module (gnu packages check)
@@ -48,6 +52,7 @@ (define-module (gnu packages tor)
   #:use-module (gnu packages pcre)
   #:use-module (gnu packages freedesktop)
   #:use-module (gnu packages glib)
+  #:use-module (gnu packages gnuzilla)
   #:use-module (gnu packages pkg-config)
   #:use-module (gnu packages python)
   #:use-module (gnu packages python-check)
@@ -483,3 +488,278 @@ (define-public tractor
 the onion proxy and sets up proxy in user session, so you don't have to mess
 up with TOR on your system anymore.")
     (license license:gpl3+)))
+
+(define torbrowser-assets
+  ;; This is a prebuilt Torbrowser from which we take the assets we need.
+  (package
+    (name "torbrowser-assets")
+    ;; To find the last version, look at https://www.torproject.org/download/.
+    (version "13.0.6")
+    (source
+     (origin
+       (method url-fetch)
+       (uri
+        (string-append
+         "https://archive.torproject.org/tor-package-archive/torbrowser/"
+         version "/tor-browser-linux-x86_64-" version ".tar.xz"))
+       (sha256
+        (base32
+         "0d72jgcp9rbpfjivsh6vg6bgbppkhrlficwk4jz0f8h69cj8ygzd"))))
+    (arguments
+     (list
+      #:install-plan
+      ''(("Browser" "." #:include-regexp
+          ("^\\./TorBrowser/Data/Tor/torrc-defaults"
+           "^\\./fonts/"
+           "^\\./fontconfig/fonts.conf")))))
+    (build-system copy-build-system)
+    (home-page "https://www.torproject.org")
+    (synopsis "Tor Browser assets")
+    (description "This package contains fonts and configuration files for Tor
+Browser.")
+    (license license:silofl1.1)))
+
+(define-public torbrowser
+  (package
+    (inherit icecat-minimal)
+    (name "torbrowser")
+    ;; To find the last version, browse
+    ;; https://archive.torproject.org/tor-package-archive/torbrowser/<version>
+    ;; (<version> is the version of the `torbrowser-assets` package).  There
+    ;; should be only one archive that starts with "src-firefox-tor-browser-".
+    (version "115.5.0esr-13.0-1-build4")
+    (source
+     (origin
+       (method url-fetch)
+       (uri
+        (string-append
+         "https://archive.torproject.org/tor-package-archive/torbrowser/"
+         (package-version torbrowser-assets)
+         "/src-firefox-tor-browser-" version ".tar.xz"))
+       (sha256
+        (base32
+         "0p0qsfc2l2bicqjr1kxciiij5qz7n8xqyvyn8f13fvk0wyg94c6v"))))
+    (build-system mozilla-build-system)
+    (arguments
+     (substitute-keyword-arguments (package-arguments icecat-minimal)
+       ((#:configure-flags flags '())
+        #~(cons*
+           "--without-relative-data-dir" ;store is read-only
+           "--disable-base-browser-update"
+           "--enable-update-channel=release"
+           "--with-branding=browser/branding/tb-release"
+           (string-append "--prefix=" #$output)
+           (string-append "--with-base-browser-version="
+                          #$(package-version
+                             (this-package-input "torbrowser-assets")))
+           #$flags))
+       ((#:phases phases)
+        #~(modify-phases #$phases
+            (add-before 'configure 'setenv
+              (lambda _
+                (setenv "CONFIG_SHELL" (which "bash"))
+                ;; Install location is prefix/lib/$MOZ_APP_NAME.  Also
+                ;; $MOZ_APP_NAME is the executable name.  Default is
+                ;; "firefox".
+                (setenv "MOZ_APP_NAME" "torbrowser")
+                ;; Profile location (relative to "~/.").  Default is
+                ;; lower($MOZ_APP_VENDOR/$MOZ_APP_BASENAME), which is:
+                ;; ~/.tor project/firefox.
+                (setenv "MOZ_APP_PROFILE" "torbrowser/browser")
+                ;; WM_CLASS (default is "$MOZ_APP_NAME-$MOZ_UPDATE_CHANNEL").
+                (setenv "MOZ_APP_REMOTINGNAME" "Tor Browser")
+                ;; Persistent state directory for the build system (default is
+                ;; $HOME/.mozbuild).
+                (setenv "MOZBUILD_STATE_PATH"
+                        (in-vicinity (getcwd) ".mozbuild"))))
+            (add-before 'configure 'mozconfig
+              (lambda* (#:key configure-flags #:allow-other-keys)
+                (with-output-to-file "mozconfig"
+                  (lambda ()
+                    (format #t ". $topsrcdir/mozconfig-linux-x86_64~%")
+                    (for-each (lambda (flag)
+                                (format #t "ac_add_options ~a~%" flag))
+                              configure-flags)))))
+            (replace 'configure
+              (lambda _
+                (invoke "make" "-C" "tools/torbrowser" "config")))
+            (add-before 'build 'fix-addons-placeholder
+              (lambda _
+                (substitute*
+                    "toolkit/locales/en-US/toolkit/about/aboutAddons.ftl"
+                  (("addons.mozilla.org") "gnuzilla.gnu.org"))))
+            (replace 'build
+              (lambda _
+                (invoke "make" "-C" "tools/torbrowser" "build")))
+            (add-after 'install 'deploy-assets
+              (lambda _
+                (let ((assets #$(this-package-input "torbrowser-assets"))
+                      (lib (in-vicinity #$output "lib/torbrowser"))
+                      (tor #$(this-package-input "tor")))
+                  ;; TorBrowser/Data/Tor/torrc-defaults
+                  (copy-recursively (in-vicinity assets "TorBrowser")
+                                    (in-vicinity lib "TorBrowser"))
+                  ;; The geoip and geoip6 files are in the same directory as
+                  ;; torrc-defaults.  (See TorProcess.sys.mjs.)
+                  (mkdir-p (in-vicinity lib "TorBrowser/Data/Tor"))
+                  (copy-file (in-vicinity tor "share/tor/geoip")
+                             (in-vicinity lib "TorBrowser/Data/Tor/geoip"))
+                  (copy-file (in-vicinity tor "share/tor/geoip6")
+                             (in-vicinity lib "TorBrowser/Data/Tor/geoip6"))
+                  ;; Fonts
+                  (copy-recursively (in-vicinity assets "fontconfig")
+                                    (in-vicinity lib "fontconfig"))
+                  (substitute* (in-vicinity lib "fontconfig/fonts.conf")
+                    (("<dir>fonts</dir>")
+                     (format #f "<dir>~a</dir>" (in-vicinity lib "fonts"))))
+                  (delete-file-recursively (in-vicinity lib "fonts"))
+                  (copy-recursively (in-vicinity assets "fonts")
+                                    (in-vicinity lib "fonts")))))
+            (replace 'build-sandbox-whitelist
+              (lambda* (#:key inputs #:allow-other-keys)
+                (define (runpath-of lib)
+                  (call-with-input-file lib
+                    (compose elf-dynamic-info-runpath
+                             elf-dynamic-info
+                             parse-elf
+                             get-bytevector-all)))
+                (define (runpaths-of-input label)
+                  (let* ((dir (string-append (assoc-ref inputs label) "/lib"))
+                         (libs (find-files dir "\\.so$")))
+                    (append-map runpath-of libs)))
+                ;; Populate the sandbox read-path whitelist as needed by ffmpeg.
+                (let* ((whitelist
+                        (map (cut string-append <> "/")
+                             (delete-duplicates
+                              `(,(string-append (assoc-ref inputs "shared-mime-info")
+                                                "/share/mime")
+                                ,@(append-map runpaths-of-input
+                                              '("mesa" "ffmpeg"))))))
+                       (whitelist-string (string-join whitelist ",")))
+                  (with-output-to-file "whitelist.txt"
+                    (lambda ()
+                      (display whitelist-string))))))
+            (add-after 'install 'autoconfig
+              (lambda* (#:key inputs #:allow-other-keys)
+                (let ((lib (in-vicinity #$output "lib/torbrowser"))
+                      (config-file "tor-browser.cfg"))
+                  (with-output-to-file (in-vicinity
+                                        lib "defaults/pref/autoconfig.js")
+                    (lambda ()
+                      (format #t "// first line must be a comment~%")
+                      (format #t "pref(~s, ~s);~%"
+                              "general.config.filename" config-file)
+                      (format #t "pref(~s, ~a);~%"
+                              "general.config.obscure_value" "0")))
+                  (with-output-to-file (in-vicinity lib config-file)
+                    (lambda ()
+                      (format #t "// first line must be a comment~%")
+                      ;; Locking prevents these values being written to
+                      ;; prefs.js, avoiding Store path capture.
+                      (format #t "lockPref(~s, ~s);~%"
+                              "extensions.torlauncher.torrc-defaults_path"
+                              (in-vicinity
+                               lib "TorBrowser/Data/Tor/torrc-defaults"))
+                      (format #t "lockPref(~s, ~s);~%"
+                              "extensions.torlauncher.tor_path"
+                              (search-input-file inputs "bin/tor"))
+                      ;; Required for Guix packaged extensions
+                      ;; SCOPE_PROFILE=1, SCOPE_APPLICATION=4, SCOPE_SYSTEM=8
+                      ;; Default is 5.
+                      (format #t "pref(~s, ~a);~%"
+                              "extensions.enabledScopes" "13")
+                      (format #t "pref(~s, ~s);~%"
+                              "security.sandbox.content.read_path_whitelist"
+                              (call-with-input-file "whitelist.txt"
+                                get-string-all))
+                      ;; Add-ons pannel (see settings.js in Icecat source).
+                      (format #t "pref(~s, ~s);~%"
+                              "extensions.getAddons.search.browseURL"
+                              "https://gnuzilla.gnu.org/mozzarella")
+                      (format #t "pref(~s, ~s);~%"
+                              "extensions.getAddons.get.url"
+                              "https://gnuzilla.gnu.org/mozzarella")
+                      (format #t "pref(~s, ~s);~%"
+                              "extensions.getAddons.link.url"
+                              "https://gnuzilla.gnu.org/mozzarella")
+                      (format #t "pref(~s, ~s);~%"
+                              "extensions.getAddons.discovery.api_url"
+                              "https://gnuzilla.gnu.org/mozzarella")
+                      (format #t "pref(~s, ~s);~%"
+                              "extensions.getAddons.langpacks.url"
+                              "https://gnuzilla.gnu.org/mozzarella")
+                      (format #t "pref(~s, ~s);~%"
+                              "lightweightThemes.getMoreURL"
+                              "https://gnuzilla.gnu.org/mozzarella"))))))
+            (replace 'wrap-program
+              (lambda* (#:key inputs #:allow-other-keys)
+                (let* ((gtk #$(this-package-input "gtk+"))
+                       (gtk-share (string-append gtk "/share"))
+                       (fonts.conf (in-vicinity
+                                    #$output
+                                    "lib/torbrowser/fontconfig/fonts.conf"))
+                       (ld-libs '#$(cons
+                                    (file-append
+                                     (this-package-input "libcanberra")
+                                     "/lib/gtk-3.0/modules")
+                                    (map
+                                     (lambda (label)
+                                       (file-append
+                                        (this-package-input label) "/lib"))
+                                     '("libpng-apng"
+                                       "libxscrnsaver"
+                                       "mesa"
+                                       "pciutils"
+                                       "mit-krb5"
+                                       "eudev"
+                                       "pulseaudio"
+                                       "libnotify")))))
+                  (wrap-program
+                      (in-vicinity #$output "lib/torbrowser/torbrowser")
+                    `("XDG_DATA_DIRS" prefix (,gtk-share))
+                    `("LD_LIBRARY_PATH" prefix ,ld-libs)
+                    `("FONTCONFIG_FILE" prefix (,fonts.conf))))))
+            (replace 'install-desktop-entry
+              (lambda _
+                (let ((apps (in-vicinity #$output "share/applications")))
+                  (mkdir-p apps)
+                  (make-desktop-entry-file
+                   (in-vicinity apps "torbrowser.desktop")
+                   #:name "Tor Browser"
+                   #:exec
+                   (format #f "~a %u" (in-vicinity #$output "bin/torbrowser"))
+                   #:comment
+                   "Tor Browser is +1 for privacy and -1 for mass surveillance"
+                   #:categories '("Network" "WebBrowser" "Security")
+                   #:startup-w-m-class "Tor Browser"
+                   #:icon "tor-browser"))))
+            (replace 'install-icons
+              (lambda* (#:key inputs #:allow-other-keys)
+                (for-each
+                 (lambda (size)
+                   (let ((oldpath (string-append
+                                   "browser/branding/tb-release/default"
+                                   size ".png"))
+                         (newpath (string-append #$output
+                                                 "/share/icons/hicolor/"
+                                                 size "x" size "/apps")))
+                     (mkdir-p newpath)
+                     (copy-file oldpath
+                                (in-vicinity newpath "tor-browser.png"))))
+                 '("16" "22" "24" "32" "48" "64" "128" "256"))))))))
+    (inputs
+     (modify-inputs (package-inputs icecat-minimal)
+       (append bash-minimal
+               tor
+               torbrowser-assets)))
+    (propagated-inputs
+     (list noscript/icecat))
+    (home-page "https://www.torproject.org")
+    (synopsis "Anonymous browser derived from Mozilla Firefox")
+    (description
+     "Tor Browser is the Tor Project version of Firefox browser.  It is the
+only recommended way to anonymously browse the web that is supported by the
+project.  It modifies Firefox in order to avoid many know application level
+attacks on the privacy of Tor users.")
+    (license license:mpl2.0)))       ;And others, see
+                                     ;toolkit/content/license.html
