Prefer HTTPS to FTP and HTTP in documentation

Most of this change is to boilerplate commentary such as license URLs.
This change was prompted by ftp://ftp.gnu.org's going-away party,
planned for November.  Change these FTP URLs to https://ftp.gnu.org
instead.  Make similar changes for URLs to other organizations moving
away from FTP.  Also, change HTTP to HTTPS for URLs to gnu.org and
fsf.org when this works, as this will further help defend against
man-in-the-middle attacks (for this part I omitted the MS-DOS and
MS-Windows sources and the test tarballs to keep the workload down).
HTTPS is not fully working to lists.gnu.org so I left those URLs alone
for now.

20 files changed, 84 insertions, 85 deletions

diff --git a/doc/misc/Makefile.in b/doc/misc/Makefile.in
index 8ff823200ad..a60fb0b0a70 100644
--- a/doc/misc/Makefile.in
+++ b/doc/misc/Makefile.in
@@ -15,7 +15,7 @@
 # GNU General Public License for more details.
 
 # You should have received a copy of the GNU General Public License
-# along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
+# along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
 
 SHELL = @SHELL@
 
diff --git a/doc/misc/autotype.texi b/doc/misc/autotype.texi
index 507a048da50..1f1f13afee2 100644
--- a/doc/misc/autotype.texi
+++ b/doc/misc/autotype.texi
@@ -581,7 +581,7 @@ specify that @kbd{M-x quickurl} should insert @var{URL} if the word
 @var{key} is at point, for example:
 
 @example
-(("FSF"      "http://www.fsf.org/" "The Free Software Foundation")
+(("FSF"      "https://www.fsf.org/" "The Free Software Foundation")
  ("emacs"  . "http://www.emacs.org/")
  ("hagbard"  "http://www.hagbard.demon.co.uk" "Hagbard's World"))
 @end example
diff --git a/doc/misc/calc.texi b/doc/misc/calc.texi
index 7bd060189c5..e4e7330ba07 100644
--- a/doc/misc/calc.texi
+++ b/doc/misc/calc.texi
@@ -35751,7 +35751,7 @@ to work on these, please send a message (using @kbd{M-x report-calc-bug})
 so any efforts can be coordinated.
 
 The latest version of Calc is available from Savannah, in the Emacs
-repository.  See @uref{http://savannah.gnu.org/projects/emacs}.
+repository.  See @uref{https://savannah.gnu.org/projects/emacs}.
 
 @c [summary]
 @node Summary, Key Index, Reporting Bugs, Top
diff --git a/doc/misc/cc-mode.texi b/doc/misc/cc-mode.texi
index f9ba5cc3921..c90f6d06bf6 100644
--- a/doc/misc/cc-mode.texi
+++ b/doc/misc/cc-mode.texi
@@ -198,7 +198,7 @@ modify this GNU manual.''
 @insertcopying
 
 This manual was generated from cc-mode.texi, which is distributed with Emacs,
-or can be downloaded from @url{http://savannah.gnu.org/projects/emacs/}.
+or can be downloaded from @url{https://savannah.gnu.org/projects/emacs/}.
 @end titlepage
 
 @comment !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
@@ -7396,7 +7396,7 @@ Emacs Lisp code that triggers the bug and include it in your report.
 
 @cindex bug report mailing list
 Reporting a bug using @code{c-submit-bug-report} files it in
-the GNU Bug Tracker at @url{http://debbugs.gnu.org}, then sends it on
+the GNU Bug Tracker at @url{https://debbugs.gnu.org}, then sends it on
 to @email{bug-cc-mode@@gnu.org}.  You can also send reports, other
 questions, and suggestions (kudos?@: @t{;-)} to that address.  It's a
 mailing list which you can join or browse an archive of; see the web site at
diff --git a/doc/misc/cl.texi b/doc/misc/cl.texi
index 33b4858a45b..b7ae7fec2d4 100644
--- a/doc/misc/cl.texi
+++ b/doc/misc/cl.texi
@@ -1207,7 +1207,7 @@ must have a well-defined value outside the @code{cl-letf} body.
 There is essentially only one exception to this, which is @var{place}
 a plain variable with a specified @var{value} (such as @code{(a 17)}
 in the above example).
-@c See http://debbugs.gnu.org/12758
+@c See https://debbugs.gnu.org/12758
 @c Some or all of this was true for cl.el, but not for cl-lib.el.
 @ignore
 The only exceptions are plain variables and calls to
@@ -1389,7 +1389,7 @@ treated like a @code{cl-letf} or @code{cl-letf*}.  This differs from true
 Common Lisp, where the rules of lexical scoping cause a @code{let}
 binding to shadow a @code{symbol-macrolet} binding.  In this package,
 such shadowing does not occur, even when @code{lexical-binding} is
-@c See http://debbugs.gnu.org/12119
+@c See https://debbugs.gnu.org/12119
 @code{t}.  (This behavior predates the addition of lexical binding to
 Emacs Lisp, and may change in future to respect @code{lexical-binding}.)
 At present in this package, only @code{lexical-let} and
@@ -3326,7 +3326,7 @@ the first sequence.  This function is more general than the Emacs
 primitive @code{mapc}.  (Note that this function is called
 @code{cl-mapc} even in @file{cl.el}, rather than @code{mapc*} as you
 might expect.)
-@c http://debbugs.gnu.org/6575
+@c https://debbugs.gnu.org/6575
 @end defun
 
 @defun cl-mapl function list &rest more-lists
diff --git a/doc/misc/efaq-w32.texi b/doc/misc/efaq-w32.texi
index bb548c991cc..4ebcbea6a0b 100644
--- a/doc/misc/efaq-w32.texi
+++ b/doc/misc/efaq-w32.texi
@@ -164,7 +164,7 @@ instructions (requires DJGPP).
 @cindex Emacs source code
 @cindex source for Emacs
 You can download Emacs releases from
-@uref{http://ftpmirror.gnu.org/emacs/, ftp.gnu.org mirrors}.  They
+@uref{https://ftpmirror.gnu.org/emacs/, ftp.gnu.org mirrors}.  They
 are distributed as compressed tar files, digitally signed by the
 maintainer who made the release.
 
@@ -181,7 +181,7 @@ to give it a try.  @xref{Compiling}.
 @cindex latest development version of Emacs
 @cindex Emacs Development
 The development version of Emacs is available from
-@uref{http://savannah.gnu.org/projects/emacs, Savannah}, the GNU
+@uref{https://savannah.gnu.org/projects/emacs, Savannah}, the GNU
 development site.
 
 @node Compiling
@@ -581,7 +581,7 @@ update your registry (you may need to reboot).
 Shane Holder gives some background on how "Scancode Map" is used
 by the system:
 @ignore
-http://ftp.gnu.org/old-gnu/emacs/windows/docs/ntemacs/contrib/caps-ctrl-registry.txt
+https://ftp.gnu.org/old-gnu/emacs/windows/docs/ntemacs/contrib/caps-ctrl-registry.txt
 From: Shane Holder <holder@@mordor.rsn.hp.com>
 To: ntemacs-users@@cs.washington.edu
 Date: 04 Dec 1996 14:36:21 -0600
@@ -913,7 +913,7 @@ Fonts in Emacs 22 and earlier are named using the X Logical Font
 Description (XLFD) format.  Emacs on Windows ignores many of the
 fields, and populates them with * when listing fonts.  Former
 maintainer Andrew Innes wrote
-@uref{http://www.gnu.org/software/emacs/windows/ntemacs/discuss/x-font-details,
+@uref{https://www.gnu.org/software/emacs/windows/ntemacs/discuss/x-font-details,
 this explanation} of what each field in the font string means and how
 Emacs treated them back in 19.34.  Since then, multilingual support and
 a redisplay overhaul to support variable width fonts have changed things
@@ -1060,7 +1060,7 @@ support packages of various components of Windows itself, GNU/Linux
 distributions these days come with a number of Free truetype fonts
 that cover a wide range of languages.  The GNU Unifont project
 contains glyphs for most of the Unicode codespace, and can be
-downloaded from @uref{http://ftpmirror.gnu.org/unifont, ftp.gnu.org
+downloaded from @uref{https://ftpmirror.gnu.org/unifont, ftp.gnu.org
 mirrors}.
 
 @node Third-party multibyte
@@ -1136,7 +1136,7 @@ There are a number of methods by which you can control automatic CR/LF
 translation in Emacs, a situation that reflects the fact that the
 default support was not very robust in the past.  For a discussion of
 this issue, take a look at
-@uref{http://www.gnu.org/software/emacs/windows/ntemacs/todo/translate,
+@uref{https://www.gnu.org/software/emacs/windows/ntemacs/todo/translate,
 this collection of email messages} on the topic.
 
 @menu
@@ -1339,7 +1339,7 @@ When an EOF is sent to a subprocess running in an interactive shell
 with @code{process-send-eof}, the shell terminates unexpectedly as
 if its input was closed.  This affects the use of @kbd{C-c C-d} in
 shell buffers.  See
-@uref{http://www.gnu.org/software/emacs/windows/ntemacs/todo/shell-ctrl-d,
+@uref{https://www.gnu.org/software/emacs/windows/ntemacs/todo/shell-ctrl-d,
 this discussion} for more details.
 
 @node Using shell
@@ -1752,7 +1752,7 @@ AUCTeX is an Emacs package for writing LaTeX files, which also
 includes preview-latex, an Emacs mode for previewing the formatted
 contents of LaTeX documents.  Pre-compiled versions for Windows are
 available from
-@uref{http://www.gnu.org/software/auctex/download-for-windows.html, the
+@uref{https://www.gnu.org/software/auctex/download-for-windows.html, the
 AUCTeX site}.
 
 @node Spell check
@@ -2096,7 +2096,7 @@ code in lib/perl5db.pl
 @end example
 
 Doug Campbell also has some
-@uref{http://www.gnu.org/software/emacs/windows/ntemacs/discuss/perldb,
+@uref{https://www.gnu.org/software/emacs/windows/ntemacs/discuss/perldb,
 suggestions} for improving the interaction of perldb and Emacs.
 
 @c ------------------------------------------------------------
@@ -2272,8 +2272,8 @@ In Emacs, you can browse the manual using Info by typing @kbd{C-h r},
 and you can view the FAQ by typing @kbd{C-h C-f}. Other resources include:
 
 @itemize
-@item @uref{http://www.gnu.org/software/emacs/, The Emacs homepage}
-@item @uref{http://www.gnu.org/software/emacs/manual/, Other Emacs manuals}
+@item @uref{https://www.gnu.org/software/emacs/, The Emacs homepage}
+@item @uref{https://www.gnu.org/software/emacs/manual/, Other Emacs manuals}
 @item @uref{http://www.emacswiki.org/, Emacs Wiki}
 @end itemize
 
diff --git a/doc/misc/efaq.texi b/doc/misc/efaq.texi
index 8d107e05e42..a8ece771fcd 100644
--- a/doc/misc/efaq.texi
+++ b/doc/misc/efaq.texi
@@ -393,7 +393,7 @@ recipients the same freedom that you enjoyed.
 
 @cindex GNU mailing lists
 The Emacs mailing lists are described at
-@uref{http://savannah.gnu.org/mail/?group=emacs, the Emacs Savannah
+@uref{https://savannah.gnu.org/mail/?group=emacs, the Emacs Savannah
 page}. Some of them are gatewayed to newsgroups.
 
 The newsgroup @uref{news:comp.emacs} is for discussion of Emacs programs
@@ -421,8 +421,7 @@ posting bug reports to this newsgroup directly (@pxref{Reporting bugs}).
 The FSF has maintained archives of all of the GNU mailing lists for many
 years, although there may be some unintentional gaps in coverage.  The
 archive can be browsed over the web at
-@uref{http://lists.gnu.org/archive/html/, the GNU mail archive}.  Raw
-files can be downloaded from @uref{ftp://lists.gnu.org/}.
+@uref{http://lists.gnu.org/archive/html/, the GNU mail archive}.
 
 Web-based Usenet search services, such as
 @uref{http://groups.google.com/groups/dir?q=gnu&, Google}, also
@@ -506,12 +505,12 @@ unsubscribe.
 @cindex Free Software Foundation, contacting
 
 For up-to-date information, see
-@uref{http://www.fsf.org/about/contact.html, the FSF contact web-page}.
+@uref{https://www.fsf.org/about/contact.html, the FSF contact web-page}.
 You can send general correspondence to @email{info@@fsf.org}.
 
 @cindex Ordering GNU software
 For details on how to order items directly from the FSF, see the
-@uref{http://shop.fsf.org/, FSF on-line store}.
+@uref{https://shop.fsf.org/, FSF on-line store}.
 
 @c ------------------------------------------------------------
 @node Getting help
@@ -645,7 +644,7 @@ information.  To get a list of these commands, type @samp{?} after
 @cindex Emacs manual, obtaining a printed or HTML copy of
 
 You can order a printed copy of the Emacs manual from the FSF@.  For
-details see the @uref{http://shop.fsf.org/, FSF on-line store}.
+details see the @uref{https://shop.fsf.org/, FSF on-line store}.
 
 The full Texinfo source for the manual also comes in the @file{doc/emacs}
 directory of the Emacs distribution, if you're daring enough to try to
@@ -655,7 +654,7 @@ file}).
 If you absolutely have to print your own copy, and you don't have @TeX{},
 you can get a PostScript or PDF (or HTML) version from
 
-@uref{http://www.gnu.org/software/emacs/manual/}
+@uref{https://www.gnu.org/software/emacs/manual/}
 
 @xref{Learning how to do something}, for how to view the manual from Emacs.
 
@@ -675,12 +674,12 @@ in Info format (@pxref{Top, Emacs Lisp,, elisp, The
 Emacs Lisp Reference Manual}).
 
 You can also order a hardcopy of the manual from the FSF, for details
-see the @uref{http://shop.fsf.org/, FSF on-line store}.  (This manual is
+see the @uref{https://shop.fsf.org/, FSF on-line store}.  (This manual is
 not always in print.)
 
 An HTML version of the Emacs Lisp Reference Manual is available at
 
-@uref{http://www.gnu.org/software/emacs/elisp-manual/elisp.html}
+@uref{https://www.gnu.org/software/emacs/elisp-manual/elisp.html}
 
 @node Installing Texinfo documentation
 @section How do I install a piece of Texinfo documentation?
@@ -699,7 +698,7 @@ First, you must turn the Texinfo source files into Info files.  You may
 do this using the stand-alone @file{makeinfo} program, available as part
 of the Texinfo package at
 
-@uref{http://www.gnu.org/software/texinfo/}
+@uref{https://www.gnu.org/software/texinfo/}
 
 For information about the Texinfo format, read the Texinfo manual which
 comes with the Texinfo package.  This manual also comes installed in
@@ -893,7 +892,7 @@ Emacs news, a history of recent user-visible changes
 More GNU information, including back issues of the @cite{GNU's
 Bulletin}, are at
 
-@uref{http://www.gnu.org/bulletins/bulletins.html} and
+@uref{https://www.gnu.org/bulletins/bulletins.html} and
 
 @uref{http://www.cs.pdx.edu/~trent/gnu/gnu.html}
 
@@ -905,7 +904,7 @@ Bulletin}, are at
 @xref{Installing Emacs}, for some basic installation hints, and see
 @ref{Problems building Emacs}, if you have problems with the installation.
 
-@uref{http://www.fsf.org/resources/service/, The GNU Service directory}
+@uref{https://www.fsf.org/resources/service/, The GNU Service directory}
 lists companies and individuals willing to sell you help in installing
 or using Emacs and other GNU software.
 
@@ -983,7 +982,7 @@ version; three components indicate a development
 version (e.g., @samp{26.0.50} is what will eventually become @samp{26.1}).
 
 Emacs is under active development, hosted at
-@uref{http://savannah.gnu.org/projects/emacs/, Savannah}.
+@uref{https://savannah.gnu.org/projects/emacs/, Savannah}.
 Follow the instructions given there to clone the project repository.
 
 Because Emacs undergoes many changes before a release, the version
@@ -2490,7 +2489,7 @@ following in your @file{.emacs}:
 If you're tired of seeing backup files whenever you do an @samp{ls} at
 the Unix shell, try GNU @code{ls} with the @samp{-B} option.  GNU
 @code{ls} is part of the GNU Fileutils package, available from
-@samp{ftp.gnu.org} and its mirrors (@pxref{Current GNU distributions}).
+@url{https://ftp.gnu.org} and its mirrors (@pxref{Current GNU distributions}).
 
 To disable or change the way backups are made,
 @pxref{Backup Names,,, emacs, The GNU Emacs Manual}.
@@ -3293,11 +3292,11 @@ the source distribution.  In brief:
 
 @item
 First download the Emacs sources.  @xref{Current GNU distributions}, for
-a list of ftp sites that make them available.  On @file{ftp.gnu.org},
+a list of sites that make them available.  On @url{https://ftp.gnu.org},
 the main GNU distribution site, sources are available as
 
 @c Don't include VER in the file name, because pretests are not there.
-@uref{ftp://ftp.gnu.org/pub/gnu/emacs/emacs-VERSION.tar.gz}
+@uref{https://ftp.gnu.org/pub/gnu/emacs/emacs-VERSION.tar.gz}
 
 (Replace @samp{VERSION} with the relevant version number, e.g., @samp{23.1}.)
 
@@ -3305,7 +3304,7 @@ the main GNU distribution site, sources are available as
 Next uncompress and extract the source files.  This requires
 the @code{gzip} and @code{tar} programs, which are standard utilities.
 If your system does not have them, these can also be downloaded from
-@file{ftp.gnu.org}.
+@url{https://ftp.gnu.org}.
 
 GNU @code{tar} can uncompress and extract in a single-step:
 
@@ -3383,7 +3382,7 @@ problem (@pxref{Reporting bugs}).
 @cindex Downloading Emacs
 
 Information on downloading Emacs is available at
-@uref{http://www.gnu.org/software/emacs/, the Emacs home-page}.
+@uref{https://www.gnu.org/software/emacs/, the Emacs home-page}.
 
 @xref{Installing Emacs}, for information on how to obtain and build the latest
 version of Emacs, and see @ref{Current GNU distributions}, for a list of
@@ -3426,7 +3425,7 @@ see @ref{Packages that do not come with Emacs}.
 
 The easiest way to add more features to your Emacs is to use the
 command @kbd{M-x list-packages}.  This contacts the
-@uref{http:///elpa.gnu.org, GNU ELPA} (``Emacs Lisp Package Archive'')
+@uref{https:///elpa.gnu.org, GNU ELPA} (``Emacs Lisp Package Archive'')
 server and fetches the list of additional packages that it offers.
 These are GNU packages that are available for use with Emacs, but are
 distributed separately from Emacs itself, for reasons of space, etc.
@@ -3498,11 +3497,11 @@ Various spell-checkers are compatible with Emacs, including:
 
 The most up-to-date official GNU software is normally kept at
 
-@uref{ftp://ftp.gnu.org/pub/gnu}
+@uref{https://ftp.gnu.org/pub/gnu}
 
 A list of sites mirroring @samp{ftp.gnu.org} can be found at
 
-@uref{http://www.gnu.org/order/ftp.html}
+@uref{httpss://www.gnu.org/prep/ftp}
 
 @node Difference between Emacs and XEmacs
 @section What is the difference between Emacs and XEmacs (formerly Lucid Emacs)?
@@ -3548,7 +3547,7 @@ binary typically has a size of about 130 kbytes, so this can be useful
 if you are in an extremely space-restricted environment.  More
 information is available from
 
-@uref{http://www.gnu.org/software/zile/}
+@uref{https://www.gnu.org/software/zile/}
 
 
 @node Emacs for MS-DOS
@@ -3566,10 +3565,10 @@ onwards, including Windows XP and Vista.
 The file @file{etc/PROBLEMS} contains some additional information
 regarding Emacs under MS-DOS.
 
-A pre-built binary distribution of the old Emacs 20 is available, as
+A pre-built binary distribution of the old Emacs 24 is available, as
 described at
 
-@uref{ftp://ftp.delorie.com/pub/djgpp/current/v2gnu/emacs.README}
+@uref{http://www.delorie.com/pub/djgpp/current/v2gnu/emacs.README}
 
 For a list of other MS-DOS implementations of Emacs (and Emacs
 look-alikes), consult the list of ``Emacs implementations and literature,''
@@ -4203,7 +4202,7 @@ Arabic, Farsi, and Hebrew, since version 24.1.
 
 First, download and install the BDF font files and any auxiliary
 packages they need.  The GNU Intlfonts distribution can be found on
-@uref{http://directory.fsf.org/localization/intlfonts.html, the GNU
+@uref{https://directory.fsf.org/localization/intlfonts.html, the GNU
 Software Directory Web site}.
 
 Next, if you are on X Window system, issue the following two commands
diff --git a/doc/misc/emacs-gnutls.texi b/doc/misc/emacs-gnutls.texi
index 87165631bf4..0ad48b0b9ec 100644
--- a/doc/misc/emacs-gnutls.texi
+++ b/doc/misc/emacs-gnutls.texi
@@ -113,7 +113,7 @@ The @code{gnutls-algorithm-priority} variable sets the GnuTLS priority
 string.  This is global, not per host name (although
 @code{gnutls-negotiate} supports a priority string per connection so
 it could be done if needed).  The priority string syntax is in the
-@uref{http://www.gnu.org/software/gnutls/documentation.html, GnuTLS
+@uref{https://www.gnu.org/software/gnutls/documentation.html, GnuTLS
 documentation}.
 @end defvar
 
diff --git a/doc/misc/erc.texi b/doc/misc/erc.texi
index e38ead079a7..b391a88c32c 100644
--- a/doc/misc/erc.texi
+++ b/doc/misc/erc.texi
@@ -875,7 +875,7 @@ decided to include ERC in Emacs.
 ERC 5.1 was released.  It was subsequently included in Emacs 22.
 
 ERC became an official GNU project, and development moved to
-@uref{http://sv.gnu.org/projects/erc}.  We switched to using GNU Arch as
+@uref{https://sv.gnu.org/projects/erc}.  We switched to using GNU Arch as
 our revision control system.  Our mailing list address changed as well.
 
 @item 2007
diff --git a/doc/misc/gnus-faq.texi b/doc/misc/gnus-faq.texi
index 45797ce3597..b75ca0a7b07 100644
--- a/doc/misc/gnus-faq.texi
+++ b/doc/misc/gnus-faq.texi
@@ -167,8 +167,8 @@ package system might not be up to date (e.g., Gnus 5.9 bundled with Emacs
 21 is outdated).
 You can get the latest released version of Gnus from
 @uref{http://www.gnus.org/dist/gnus.tar.gz}
-or via anonymous FTP from
-@uref{ftp://ftp.gnus.org/pub/gnus/gnus.tar.gz}.
+or from
+@uref{https://ftp.gnus.org/pub/gnus/gnus.tar.gz}.
 
 @node FAQ 1-4
 @subsubheading Question 1.4
@@ -1522,7 +1522,7 @@ Gimp), open the image you want to include, cut out the
 relevant part, reduce color depth to 1 bit, resize to
 48*48 and save as bitmap. Now you should get the compface
 package from
-@uref{ftp://ftp.cs.indiana.edu:/pub/faces/, this site}.
+@uref{ftp://ftp.cs.indiana.edu/pub/faces/, this site}.
 and create the actual X-face by saying
 
 @example
diff --git a/doc/misc/gnus-news.el b/doc/misc/gnus-news.el
index c7d41c8555b..b6e8862f960 100644
--- a/doc/misc/gnus-news.el
+++ b/doc/misc/gnus-news.el
@@ -17,7 +17,7 @@
 ;; GNU General Public License for more details.
 
 ;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
+;; along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
 
 ;;; Commentary:
 
@@ -51,7 +51,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
-along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
 
 \nLocal variables:\nmode: outline
 paragraph-separate: \"[ 	]*$\"\nend:\n")
diff --git a/doc/misc/gnus-news.texi b/doc/misc/gnus-news.texi
index be7e7ac71a1..94c2a79a2de 100644
--- a/doc/misc/gnus-news.texi
+++ b/doc/misc/gnus-news.texi
@@ -143,7 +143,7 @@ with a WWW browser with @kbd{K H}.  @xref{MIME Commands}.
 @item International host names (@acronym{IDNA}) can now be decoded
 inside article bodies using @kbd{W i}
 (@code{gnus-summary-idna-message}).  This requires that GNU Libidn
-(@url{http://www.gnu.org/software/libidn/}) has been installed.
+(@url{https://www.gnu.org/software/libidn/}) has been installed.
 @c FIXME: Also mention @code{message-use-idna}?
 
 @item The non-@acronym{ASCII} group names handling has been much
diff --git a/doc/misc/gnus.texi b/doc/misc/gnus.texi
index b002f5dea7e..88e121a07b0 100644
--- a/doc/misc/gnus.texi
+++ b/doc/misc/gnus.texi
@@ -8970,7 +8970,7 @@ Decode IDNA encoded domain names in the current articles.  IDNA
 encoded domain names looks like @samp{xn--bar}.  If a string remain
 unencoded after running invoking this, it is likely an invalid IDNA
 string (@samp{xn--bar} is invalid).  You must have GNU Libidn
-(@url{http://www.gnu.org/software/libidn/}) installed for this command
+(@url{https://www.gnu.org/software/libidn/}) installed for this command
 to work.
 
 @item W t
@@ -9186,7 +9186,7 @@ Verify a signed control message
 hierarchy maintainer.  You need to add the @acronym{PGP} public key of
 the maintainer to your keyring to verify the
 message.@footnote{@acronym{PGP} keys for many hierarchies are
-available at @uref{ftp://ftp.isc.org/pub/pgpcontrol/README.html}}
+available at @uref{https://ftp.isc.org/pub/pgpcontrol/README.html}}
 
 @item W s
 @kindex W s (Summary)
@@ -12320,7 +12320,7 @@ This variable controls whether Gnus performs IDNA decoding of
 internationalized domain names inside @samp{From}, @samp{To} and
 @samp{Cc} headers.  @xref{IDNA, ,IDNA,message, The Message Manual},
 for how to compose such messages.  This requires
-@uref{http://www.gnu.org/software/libidn/, GNU Libidn}, and this
+@uref{https://www.gnu.org/software/libidn/, GNU Libidn}, and this
 variable is only enabled if you have installed it.
 
 @vindex gnus-inhibit-images
@@ -13860,7 +13860,7 @@ The same as the above, but don't do automatic @acronym{STARTTLS} upgrades.
 @findex nntp-open-tls-stream
 @item nntp-open-tls-stream
 Opens a connection to a server over a @dfn{secure} channel.  To use
-this you must have @uref{http://www.gnu.org/software/gnutls/, GnuTLS}
+this you must have @uref{https://www.gnu.org/software/gnutls/, GnuTLS}
 installed.  You then define a server as follows:
 
 @lisp
diff --git a/doc/misc/message.texi b/doc/misc/message.texi
index bbdef4a8629..829986e220c 100644
--- a/doc/misc/message.texi
+++ b/doc/misc/message.texi
@@ -925,7 +925,7 @@ invoke @kbd{M-x message-idna-to-ascii-rhs RET} in the message buffer
 to have the non-@acronym{ASCII} domain names encoded while you edit
 the message.
 
-Note that you must have @uref{http://www.gnu.org/software/libidn/, GNU
+Note that you must have @uref{https://www.gnu.org/software/libidn/, GNU
 Libidn} installed in order to use this functionality.
 
 @node Security
diff --git a/doc/misc/mh-e.texi b/doc/misc/mh-e.texi
index 3aa04caf865..0fb6e6ce5da 100644
--- a/doc/misc/mh-e.texi
+++ b/doc/misc/mh-e.texi
@@ -237,7 +237,7 @@ read a built-in tutorial by starting GNU Emacs and typing @kbd{C-h t}
 @ref{Top, , GNU Emacs Manual, emacs, GNU Emacs Manual},
 @end ifinfo
 @ifhtml
-@uref{http://www.gnu.org/software/emacs/manual/html_node/emacs/,
+@uref{https://www.gnu.org/software/emacs/manual/html_node/emacs/,
 @cite{GNU Emacs Manual}},
 @end ifhtml
 from the Free Software Foundation.
@@ -386,7 +386,7 @@ GNU Emacs Manual}.
 @end ifnothtml
 @ifhtml
 See section
-@uref{http://www.gnu.org/software/emacs/manual/html_node/emacs/Easy-Customization.html,
+@uref{https://www.gnu.org/software/emacs/manual/html_node/emacs/Easy-Customization.html,
 Easy Customization} in @cite{The GNU Emacs Manual}.
 @end ifhtml
 @xref{Options}.
@@ -406,7 +406,7 @@ GNU Emacs Manual}.
 @end ifnothtml
 @ifhtml
 See section
-@uref{http://www.gnu.org/software/emacs/manual/html_node/emacs/Face-Customization.html,
+@uref{https://www.gnu.org/software/emacs/manual/html_node/emacs/Face-Customization.html,
 Face Customization} in @cite{The GNU Emacs Manual}.
 @end ifhtml
 
@@ -424,7 +424,7 @@ Emacs Manual}
 @end ifnothtml
 @ifhtml
 See section
-@uref{http://www.gnu.org/software/emacs/manual/html_node/emacs/Hooks.html,
+@uref{https://www.gnu.org/software/emacs/manual/html_node/emacs/Hooks.html,
 Hooks} in @cite{The GNU Emacs Manual}
 @end ifhtml
 for a description about @dfn{normal hooks} and @dfn{abnormal hooks}.
@@ -475,7 +475,7 @@ point.
 @end ifnothtml
 @ifhtml
 See the section
-@uref{http://www.gnu.org/software/emacs/manual/html_node/emacs/Completion.html,
+@uref{https://www.gnu.org/software/emacs/manual/html_node/emacs/Completion.html,
 Completion} in @cite{The GNU Emacs Manual}.
 @end ifhtml
 Note that @key{SPC} cannot be used for completing filenames and
@@ -1123,17 +1123,17 @@ exist,
 @footnote{The @cite{GNU Emacs Lisp Reference Manual} should be available
 via the Info system by typing @kbd{C-h i m Emacs Lisp
 @key{RET}}. It is also available online at @*
-@uref{http://www.gnu.org/software/emacs/manual/elisp.html}.}
+@uref{https://www.gnu.org/software/emacs/manual/elisp.html}.}
 @end iftex
 @ifinfo
 @footnote{@xref{Top, The GNU Emacs Lisp Reference Manual, , elisp, GNU
 Emacs Lisp Reference Manual}, which should be available via the
 Info system. It is also available online at
-@uref{http://www.gnu.org/software/emacs/manual/elisp.html}.}
+@uref{https://www.gnu.org/software/emacs/manual/elisp.html}.}
 @end ifinfo
 @ifhtml
 @footnote{The
-@uref{http://www.gnu.org/software/emacs/manual/elisp.html,
+@uref{https://www.gnu.org/software/emacs/manual/elisp.html,
 The GNU Emacs Lisp Reference Manual} should be available via
 the Info system by typing @kbd{C-h i m Emacs Lisp @key{RET}}.}
 @end ifhtml
@@ -1298,7 +1298,7 @@ When you choose a folder in MH-E via a command such as @kbd{o}
 @end ifnothtml
 @ifhtml
 (see the section
-@uref{http://www.gnu.org/software/emacs/manual/html_node/emacs/Completion.html,
+@uref{https://www.gnu.org/software/emacs/manual/html_node/emacs/Completion.html,
 Completion} in @cite{The GNU Emacs Manual}).
 @end ifhtml
 In addition, MH-E has several ways of choosing a suitable default so
@@ -2112,7 +2112,7 @@ display of this field requires the
 @command{uncompface} program}. Recent versions of XEmacs have internal
 support for @samp{X-Face:} images. If your version of XEmacs does not,
 then you'll need both @command{uncompface} and the
-@uref{ftp://ftp.jpl.org/pub/elisp/, @samp{x-face} package}.}. MH-E
+@uref{http://www.jpl.org/ftp/pub/elisp/, @samp{x-face} package}.}. MH-E
 renders the foreground and background of the image using the
 associated attributes of the face @code{mh-show-xface}.
 
@@ -2126,7 +2126,7 @@ associated attributes of the face @code{mh-show-xface}.
 Finally, MH-E will display images referenced by the
 @samp{X-Image-URL:} header field if neither the @samp{Face:} nor the
 @samp{X-Face:} fields are present@footnote{The display of the images
-requires the @uref{http://www.gnu.org/software/wget/wget.html,
+requires the @uref{https://www.gnu.org/software/wget/wget.html,
 @command{wget} program} to fetch the image and the @command{convert}
 program from the @uref{http://www.imagemagick.org/script/index.php,
 ImageMagick suite}.}. Of the three header fields this is the most
@@ -2856,7 +2856,7 @@ See @cite{The PGG Manual}.
 @end ifinfo
 @ifhtml
 See
-@uref{http://www.gnu.org/software/emacs/manual/pgg.html,
+@uref{https://www.gnu.org/software/emacs/manual/pgg.html,
 @cite{The PGG Manual}}.
 @end ifhtml
 
@@ -5623,7 +5623,7 @@ See @cite{The PGG Manual}.
 @end ifinfo
 @ifhtml
 See
-@uref{http://www.gnu.org/software/emacs/manual/pgg.html,
+@uref{https://www.gnu.org/software/emacs/manual/pgg.html,
 @cite{The PGG Manual}}.
 @end ifhtml
 
@@ -6032,7 +6032,7 @@ GNU Emacs Manual}).
 @end ifnothtml
 @ifhtml
 (see the section
-@uref{http://www.gnu.org/software/emacs/manual/html_node/emacs/Regexps.html,
+@uref{https://www.gnu.org/software/emacs/manual/html_node/emacs/Regexps.html,
 Syntax of Regular Expressions} in
 @cite{The GNU Emacs Manual}).
 @end ifhtml
@@ -6182,7 +6182,7 @@ GNU Emacs Manual}).
 @end ifnothtml
 @ifhtml
 (see the section
-@uref{http://www.gnu.org/software/emacs/manual/html_node/emacs/Regexps.html,
+@uref{https://www.gnu.org/software/emacs/manual/html_node/emacs/Regexps.html,
 Syntax of Regular Expressions} in
 @cite{The GNU Emacs Manual}).
 @end ifhtml
@@ -6290,7 +6290,7 @@ You can also use the speedbar
 @end ifnothtml
 @ifhtml
 (see the section
-@uref{http://www.gnu.org/software/emacs/manual/html_node/emacs/Speedbar.html,
+@uref{https://www.gnu.org/software/emacs/manual/html_node/emacs/Speedbar.html,
 Speedbar Frames} in @cite{The GNU Emacs Manual})
 @end ifhtml
 to view your folders. To bring up the speedbar, run @kbd{M-x speedbar
@@ -6422,7 +6422,7 @@ For a description of the menu bar, please
 @end ifnothtml
 @ifhtml
 see the section
-@uref{http://www.gnu.org/software/emacs/manual/html_node/emacs/Menu-Bar.html,
+@uref{https://www.gnu.org/software/emacs/manual/html_node/emacs/Menu-Bar.html,
 The Menu Bar} in @cite{The GNU Emacs Manual}.
 @end ifhtml
 
@@ -6444,7 +6444,7 @@ tool bar, please
 @end ifnothtml
 @ifhtml
 see the section
-@uref{http://www.gnu.org/software/emacs/manual/html_node/emacs/Tool-Bars.html,
+@uref{https://www.gnu.org/software/emacs/manual/html_node/emacs/Tool-Bars.html,
 Tool Bars} in @cite{The GNU Emacs Manual}.
 @end ifhtml
 
@@ -8226,7 +8226,7 @@ GNU Emacs Manual}.
 @end ifnothtml
 @ifhtml
 section
-@uref{http://www.gnu.org/software/emacs/manual/html_node/emacs/Regexps.html,
+@uref{https://www.gnu.org/software/emacs/manual/html_node/emacs/Regexps.html,
 Syntax of Regular Expressions} in @cite{The GNU Emacs Manual}.
 @end ifhtml
 
diff --git a/doc/misc/org.texi b/doc/misc/org.texi
index 44fcb94f972..ca57501f3d8 100644
--- a/doc/misc/org.texi
+++ b/doc/misc/org.texi
@@ -3601,7 +3601,7 @@ A link should be enclosed in double brackets and may contain a descriptive
 text to be displayed instead of the URL (@pxref{Link format}), for example:
 
 @example
-[[http://www.gnu.org/software/emacs/][GNU Emacs]]
+[[https://www.gnu.org/software/emacs/][GNU Emacs]]
 @end example
 
 @noindent
@@ -3713,7 +3713,7 @@ current session are part of the history for this prompt, so you can access
 them with @key{up} and @key{down} (or @kbd{M-p/n}).
 
 @b{Completion support}@* Completion with @key{TAB} will help you to insert
-valid link prefixes like @samp{http:} or @samp{ftp:}, including the prefixes
+valid link prefixes like @samp{https:}, including the prefixes
 defined through link abbreviations (@pxref{Link abbreviations}).  If you
 press @key{RET} after inserting only the @var{prefix}, Org will offer
 specific completion support for some link types@footnote{This works if
diff --git a/doc/misc/reftex.texi b/doc/misc/reftex.texi
index dfe0eccebaf..e7eef9eba24 100644
--- a/doc/misc/reftex.texi
+++ b/doc/misc/reftex.texi
@@ -31,8 +31,8 @@ Con@TeX{}t
 @include emacsver.texi
 
 @set VERSION @value{EMACSVER}
-@set AUCTEXSITE @uref{http://www.gnu.org/software/auctex/,@AUCTeX{} web site}
-@set MAINTAINERSITE @uref{http://www.gnu.org/software/auctex/reftex.html,@RefTeX{} web page}
+@set AUCTEXSITE @uref{https://www.gnu.org/software/auctex/,@AUCTeX{} web site}
+@set MAINTAINERSITE @uref{https://www.gnu.org/software/auctex/reftex.html,@RefTeX{} web page}
 @set MAINTAINERCONTACT @uref{mailto:auctex-devel@@gnu.org,contact the maintainers}
 @set MAINTAINER the @AUCTeX{} project
 @set SUPPORTADDRESS @AUCTeX{} user mailing list (@email{auctex@@gnu.org})
diff --git a/doc/misc/smtpmail.texi b/doc/misc/smtpmail.texi
index 824945856ac..e45ec0616ff 100644
--- a/doc/misc/smtpmail.texi
+++ b/doc/misc/smtpmail.texi
@@ -290,7 +290,7 @@ and @code{plain} for no encryption.
 Use of any form of TLS/SSL requires support in Emacs.  You can either
 use the built-in support (in Emacs 24.1 and later), or the
 @file{starttls.el} Lisp library.  The built-in support uses the GnuTLS
-@footnote{@url{http://www.gnu.org/software/gnutls/}} library.
+@footnote{@url{https://www.gnu.org/software/gnutls/}} library.
 If your Emacs has GnuTLS support built-in, the function
 @code{gnutls-available-p} is defined and returns non-@code{nil}.
 Otherwise, you must use the @file{starttls.el} library (see that file for
@@ -300,7 +300,7 @@ requires one of the following external tools to be installed:
 @enumerate
 @item
 The GnuTLS command line tool @samp{gnutls-cli}, which you can get from
-@url{http://www.gnu.org/software/gnutls/}.  This is the recommended
+@url{https://www.gnu.org/software/gnutls/}.  This is the recommended
 tool, mainly because it can verify server certificates.
 
 @item
diff --git a/doc/misc/url.texi b/doc/misc/url.texi
index a3c625edce1..e98fab4e011 100644
--- a/doc/misc/url.texi
+++ b/doc/misc/url.texi
@@ -112,11 +112,11 @@ technically obsolete despite its widespread vernacular usage.)
 meaning.  For example, the URI
 
 @example
-http://www.gnu.org/software/emacs/
+https://www.gnu.org/software/emacs/
 @end example
 
 @noindent
-specifies the scheme component @samp{http}, the hostname component
+specifies the scheme component @samp{https}, the hostname component
 @samp{www.gnu.org}, and the path component @samp{/software/emacs/}.
 
 @cindex parsed URIs
diff --git a/doc/misc/woman.texi b/doc/misc/woman.texi
index 7b926e109a7..fa12f9c35aa 100644
--- a/doc/misc/woman.texi
+++ b/doc/misc/woman.texi
@@ -1290,7 +1290,7 @@ inelegantly, then please
 @enumerate
 @item
 try the latest version of @file{woman.el} from the Emacs repository
-on @uref{http://savannah.gnu.org/projects/emacs/}.  If it still fails, please
+on @uref{https://savannah.gnu.org/projects/emacs/}.  If it still fails, please
 
 @item
 use @kbd{M-x report-emacs-bug} to send a bug report.