source: xsoft/graphweb/firefox-legacy.xml@ 2eb4a06

11.0 11.1 11.2 lazarus plabs/python-mods qt5new trunk upgradedb xry111/intltool xry111/soup3 xry111/test-20220226
Last change on this file since 2eb4a06 was 2eb4a06, checked in by Ken Moffat <ken@…>, 16 months ago

firefox-legacy : remove the tag.

Replace it by extended text since it does not build on glibc-2.34
and is only here temporarily.

This stops it appearing when grepping for remaining lfs101 tags.

  • Property mode set to 100644
File size: 24.2 KB
Line 
1<?xml version="1.0" encoding="ISO-8859-1"?>
2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
3 "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
4 <!ENTITY % general-entities SYSTEM "../../general.ent">
5 %general-entities;
6
7 <!ENTITY firefox-download-http "&mozilla-http;/firefox/releases/&JS78-version;esr/source/firefox-&JS78-version;esr.source.tar.xz">
8 <!ENTITY firefox-download-ftp " ">
9 <!ENTITY firefox-md5sum "872623fc9f93ea8d3f3290024f0c0925">
10 <!ENTITY firefox-size "319 MB">
11 <!-- NB with stylo, much of the build uses rust, and therefore cargo files.
12 But the extra cached cargo files, if any, seem to be minimal -->
13 <!ENTITY firefox-buildsize "5.2 GB (186 MB installed) without tests">
14 <!-- editors: with ff63 and rust-1.29, ./mach build -j4 is probably the
15 most practical way to get a timing on a machine with more cores, if taking
16 cores offline is not practical. If in doubt, round up -->
17 <!ENTITY firefox-time "28 SBU (on a 4-core machine) without tests">
18]>
19
20<sect1 id="firefox-legacy" xreflabel="Firefox-&JS78-version; Legacy">
21 <?dbhtml filename="firefox-legacy.html" ?>
22
23 <sect1info>
24 <date>$Date$</date>
25 </sect1info>
26
27 <title>Firefox-&JS78-version;</title>
28
29 <indexterm zone="firefox-legacy">
30 <primary sortas="a-Firefox">Firefox Legacy</primary>
31 </indexterm>
32
33 <sect2 role="package">
34 <title>Introduction to Firefox Legacy</title>
35
36 <para>
37 <application>Firefox</application> is a stand-alone browser based on the
38 <application>Mozilla</application> codebase.
39 </para>
40
41 <para>This package is known to build and work properly using an LFS-10.1
42 platform but cannot be built on systems using glibc-2.34.</para>
43
44 <bridgehead renderas="sect3">Package Information</bridgehead>
45 <itemizedlist spacing="compact">
46 <listitem>
47 <para>
48 Download (HTTP): <ulink url="&firefox-download-http;"/>
49 </para>
50 </listitem>
51 <listitem>
52 <para>
53 Download (FTP): <ulink url="&firefox-download-ftp;"/>
54 </para>
55 </listitem>
56 <listitem>
57 <para>
58 Download MD5 sum: &firefox-md5sum;
59 </para>
60 </listitem>
61 <listitem>
62 <para>
63 Download size: &firefox-size;
64 </para>
65 </listitem>
66 <listitem>
67 <para>
68 Estimated disk space required: &firefox-buildsize;
69 </para>
70 </listitem>
71 <listitem>
72 <para>
73 Estimated build time: &firefox-time;
74 </para>
75 </listitem>
76 </itemizedlist>
77
78<!--<bridgehead renderas="sect3">Additional Downloads</bridgehead>
79 <itemizedlist spacing="compact">
80 <listitem>
81 <para>
82 Required patch:
83 <ulink url="&patch-root;/firefox-&firefox-version;esr-rust1520-1.patch"/>
84 </para>
85 </listitem>
86 </itemizedlist>-->
87
88 <warning>
89 <para>
90 This is the old series of firefox ESR releases, the final release is
91 planned to be 78.15.0 in October 2021. This page is expected to be
92 removed in November 2021 when firefox-91.3 is released.
93 </para>
94
95 <para>
96 If you are using glibc-2.34 or later, this old version of firefox will
97 not be usable and you should use <xref linkend="firefox"/>.
98 </para>
99
100 <para>
101 There are only two reasons to use this version: either you want to use
102 ftp from the browser and do not yet have a workaround, or you have a
103 system which for unexplained reasons cannot compile current firefox
104 (there is now a patch to work around that).
105 </para>
106 </warning>
107
108 <note>
109 <para>
110 The directory name is firefox-&JS78-version;
111 </para>
112
113 <para>
114 Extracting the tarball
115 will reset the permissions of the current directory to 0755 if you
116 have permission to do that. If you do this in a directory where
117 the sticky bit is set, such
118 as <filename class="directory">/tmp</filename> it will end with error
119 messages:
120 </para>
121
122<literallayout>tar: .: Cannot utime: Operation not permitted
123tar: .: Cannot change mode to rwxr-xr-t: Operation not permitted
124tar: Exiting with failure status due to previous errors
125</literallayout>
126
127 <para>
128 This does finish with non-zero status, but it does
129 <emphasis>NOT</emphasis> mean there is a real problem.
130 Do not untar as the <systemitem class="username">root</systemitem> user
131 in a directory where the sticky bit is set - that will unset it.
132 </para>
133
134 <para>
135 As with other large packages which use C++ (or rust), the SBU times
136 to build this vary more widely than you might expect. The build times
137 will increase significantly if your machine has to swap.
138 </para>
139
140 <para>
141 Although upstream prefer to use <application>PulseAudio</application>,
142 for the moment <application>Alsa</application> can still be used. Both
143 may need runtime configuration to get sound working.
144 </para>
145 </note>
146
147 <bridgehead renderas="sect3">Firefox Dependencies</bridgehead>
148
149 <bridgehead renderas="sect4">Required</bridgehead>
150 <para role="required">
151 <xref linkend="autoconf213"/>,
152 <xref linkend="cbindgen"/>,
153 <xref linkend="dbus-glib"/>,
154 both <xref linkend="gtk3"/> and
155 <xref linkend="gtk2"/>,
156 <xref linkend="libnotify"/>,
157 <xref linkend="llvm"/> (clang, used for bindgen even if using gcc),
158 <xref linkend="nodejs"/>,
159 <xref linkend="nss"/>,
160 <xref linkend="pulseaudio"/>
161 (or
162 <xref linkend="alsa-lib"/> if you edit the mozconfig;
163 now deprecated by mozilla), in either case please read the
164 Configuration Information,
165 <!-- rustc is required by cbindgen so not needed here
166 <xref linkend="rust"/>,-->
167 <xref linkend="python3"/> (rebuilt after installing <xref linkend="sqlite"/>),
168 <xref linkend="startup-notification"/>,
169 <xref linkend="unzip"/>,
170 <xref linkend="yasm"/>, and
171 <xref linkend="zip"/>
172 </para>
173
174 <bridgehead renderas="sect4">Recommended</bridgehead>
175 <para role="recommended">
176 <xref linkend="icu"/>,
177 <xref linkend="libevent"/>,
178 <xref linkend="libwebp"/>,
179 <xref linkend="nasm"/>
180 </para>
181
182 <note>
183 <para>
184 If you don't install recommended dependencies, then internal copies of
185 those packages will be used. They might be tested to work, but they can
186 be out of date or contain security holes.
187 </para>
188 </note>
189
190 <bridgehead renderas="sect4">Optional</bridgehead>
191 <para role="optional">
192 <xref linkend="curl"/>,
193 <xref linkend="doxygen"/>,
194 <xref role="runtime" linkend="ffmpeg"/> (runtime, to play mov, mp3 or mp4 files),
195 <!-- <phrase revision="sysv"><ulink url="https://sourceforge.net/projects/liboauth/files/">liboauth</ulink></phrase> -->
196 <xref linkend="liboauth"/>,
197 <xref linkend="openjdk"/>,
198 <xref linkend="valgrind"/>,
199 <xref linkend="wget"/>,
200 <xref linkend="wireless_tools"/>,
201 <ulink url="https://github.com/libproxy/libproxy">libproxy</ulink>
202 </para>
203
204 <para condition="html" role="usernotes">
205 User Notes: <ulink url="&blfs-wiki;/firefox"/>
206 </para>
207 </sect2>
208
209 <sect2 role="installation">
210 <title>Installation of Firefox Legacy</title>
211
212 <para>
213 The configuration of <application>Firefox</application> is accomplished
214 by creating a <filename>mozconfig</filename> file containing the desired
215 configuration options. A default <filename>mozconfig</filename> is
216 created below. To see the entire list of available configuration options
217 (and an abbreviated description of some of them), issue <command>./mach
218 configure &amp;&amp; ./configure --help | less</command>. You may also
219 wish to review the entire file and uncomment any other desired options.
220 Create the file by issuing the following command:
221 </para>
222
223<screen><userinput>cat &gt; mozconfig &lt;&lt; "EOF"
224<literal># If you have a multicore machine, all cores will be used by default.
225
226# If you have installed (or will install) wireless-tools, and you wish
227# to use geolocation web services, comment out this line
228ac_add_options --disable-necko-wifi
229
230# API Keys for geolocation APIs - necko-wifi (above) is required for MLS
231# Uncomment the following line if you wish to use Mozilla Location Service
232#ac_add_options --with-mozilla-api-keyfile=$PWD/mozilla-key
233
234# Uncomment the following line if you wish to use Google's geolocaton API
235# (needed for use with saved maps with Google Maps)
236#ac_add_options --with-google-location-service-api-keyfile=$PWD/google-key
237
238# startup-notification is required since firefox-78
239
240# Uncomment the following option if you have not installed PulseAudio
241#ac_add_options --disable-pulseaudio
242# or uncomment this if you installed alsa-lib instead of PulseAudio
243#ac_add_options --enable-alsa
244
245# Comment out following options if you have not installed
246# recommended dependencies:
247ac_add_options --with-system-libevent
248ac_add_options --with-system-webp
249ac_add_options --with-system-nspr
250ac_add_options --with-system-nss
251ac_add_options --with-system-icu
252
253# Do not specify the gold linker which is not the default. It will take
254# longer and use more disk space when debug symbols are disabled.
255
256# libdavid (av1 decoder) requires nasm. Uncomment this if nasm
257# has not been installed.
258#ac_add_options --disable-av1
259
260# You cannot distribute the binary if you do this
261ac_add_options --enable-official-branding
262
263# Stripping is now enabled by default.
264# Uncomment these lines if you need to run a debugger:
265#ac_add_options --disable-strip
266#ac_add_options --disable-install-strip
267
268# Disabling debug symbols makes the build much smaller and a little
269# faster. Comment this if you need to run a debugger. Note: This is
270# required for compilation on i686.
271ac_add_options --disable-debug-symbols
272
273# The elf-hack is reported to cause failed installs (after successful builds)
274# on some machines. It is supposed to improve startup time and it shrinks
275# libxul.so by a few MB - comment this if you know your machine is not affected.
276ac_add_options --disable-elf-hack
277
278# The BLFS editors recommend not changing anything below this line:
279ac_add_options --prefix=/usr
280ac_add_options --enable-application=browser
281ac_add_options --disable-crashreporter
282ac_add_options --disable-updater
283# enabling the tests will use a lot more space and significantly
284# increase the build time, for no obvious benefit.
285ac_add_options --disable-tests
286
287# The default level of optimization again produces a working build with gcc.
288ac_add_options --enable-optimize
289
290ac_add_options --enable-system-ffi
291ac_add_options --enable-system-pixman
292
293# --with-system-bz2 was removed in firefox-78
294ac_add_options --with-system-jpeg
295ac_add_options --with-system-png
296ac_add_options --with-system-zlib
297
298# The following option unsets Telemetry Reporting. With the Addons Fiasco,
299# Mozilla was found to be collecting user's data, including saved passwords and
300# web form data, without users consent. Mozilla was also found shipping updates
301# to systems without the user's knowledge or permission.
302# As a result of this, use the following command to permanently disable
303# telemetry reporting in Firefox.
304unset MOZ_TELEMETRY_REPORTING
305
306mk_add_options MOZ_OBJDIR=@TOPSRCDIR@/firefox-build-dir</literal>
307EOF</userinput></screen>
308
309 <para>
310 Compile <application>Firefox</application> by issuing the following
311 commands:
312 </para>
313
314<!--<para>
315 Apply a patch that prevent a crash when opening HTML videos if
316 compiling against rust-1.52.0 or higher:
317 </para>
318
319<screen><userinput>patch -Np1 -i ../firefox-&firefox-version;esr-rust1520-1.patch</userinput></screen>-->
320
321 <para>
322 In the esr version of firefox-78, the code to ensure that add-ons
323 are signed by the trusted root has been disabled, presumably for
324 organizations which require their own add-ons. To enable it as an
325 added security measure issue the following command:
326 </para>
327
328<screen><userinput>sed -e 's/Disable/Enable/' \
329 -e '/^MOZ_REQUIRE_SIGNING/s/0/1/' \
330 -i build/mozconfig.common</userinput></screen>
331
332 <para>
333 If the geolocation APIs are needed:
334 </para>
335
336 <note>
337 <para>
338 <!-- Taken from Arch Linux - an immensely helpful link - Thanks -->
339 The Google and Mozilla API Keys below are specific to LFS. If using
340 these instructions for another distro, or if you intend to distribute
341 binary copies of the software using these instructions, please obtain
342 your own keys following the instructions located at
343 <ulink url="http://www.chromium.org/developers/how-tos/api-keys"/> and
344 <ulink url="https://location.services.mozilla.com/api"/> respectively.
345 <!-- BLFS Devs, register an account at Google with your
346 @linuxfromscratch.org email address, and I'll make you an administrator
347 for the 'Google APIs for LFS' project (where the API and OAuth keys
348 were created for use in the book).-->
349 </para>
350 </note>
351
352<screen><userinput>echo "AIzaSyDxKL42zsPjbke5O8_rPVpVrLrJ8aeE9rQ" > google-key
353echo "613364a7-9418-4c86-bcee-57e32fd70c23" > mozilla-key</userinput></screen>
354
355 <note>
356
357 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
358 href="../../xincludes/mozshm.xml"/>
359
360 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
361 href="../../xincludes/mozmach.xml"/>
362
363 </note>
364 <!--
365 <para>
366 If you are building on i686, apply a fix to prevent Internal Compiler
367 Errors in GCC-7+:
368 </para>
369
370<screen><userinput remap="pre">case $(uname -m) in
371 i?86) sed -i "562 s/mips64/i386/" gfx/skia/skia/third_party/skcms/src/Transform_inl.h ;;
372esac</userinput></screen>
373 -->
374<!--<para>
375 Apply a patch to allow this to be compiled with <xref linkend="rust"/>:
376 </para>
377
378<screen><userinput remap="pre">patch -p1 -i ../firefox-&firefox-version;esr-rustc1470-1.patch</userinput></screen>-->
379
380 <para>
381 Now invoke the Python script to compile the package.
382 </para>
383
384<screen><userinput>export CC=gcc CXX=g++ &amp;&amp;
385export MOZBUILD_STATE_PATH=${PWD}/mozbuild &amp;&amp;
386./mach configure &amp;&amp;
387./mach build</userinput></screen>
388
389 <para>
390 The <filename>mozconfig</filename> above disables the tests because
391 they use a lot more time and disk space for no obvious benefit. If
392 you have nevertheless enabled them, you can run the tests by executing
393 <command>./mach gtest</command>. This will require a network connection,
394 and to be run from within an Xorg session - there is a popup dialog
395 when it fails to connect to ALSA (that does not create a failed test).
396 One or two tests will fail. To see the details of the failure(s) you
397 will need to log the output from that command so that you can review it.
398 </para>
399
400 <para>
401 Now, as the <systemitem class="username">root</systemitem> user:
402 </para>
403
404<screen role="root"><userinput>./mach install</userinput></screen>
405
406 <para>
407 Set environment variables back to their values:
408 </para>
409
410<screen><userinput>unset CC CXX MOZBUILD_STATE_PATH</userinput></screen>
411
412 </sect2>
413
414 <sect2 role="commands">
415 <title>Command Explanations</title>
416
417<!--<xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
418 href="../../xincludes/SIOCGSTAMP.xml"/>-->
419
420 <para>
421 <command>export CC=gcc CXX=g++ ...</command>: Upstream now prefer
422 <application>clang</application> so that they can use one compiler
423 everywhere. On the X86 architectures <application>clang</application>
424 now appears to support most of the same security-hardening options as
425 <application>GCC</application>.
426 <!-- supported in llvm-11
427 but the newer
428 <literal>-fstack-clash-protection</literal> is still not supported.-->
429 With the current versions and the default flags,
430 <application>GCC</application> creates a marginally bigger build but
431 takes typically 2 SBU less time on a 4-core machine using the mozconfig
432 above.
433 </para>
434
435 <para>
436 <command>export MOZBUILD_STATE_PATH=${PWD}/mozbuild</command>: The build
437 is now supposed to tell you that it intends to create <filename
438 class="directory">~/.mozbuild</filename>, and offer you an option to
439 press &lt;ENTER&gt; to accept this, or Ctrl-C to cancel and restart the
440 build after specifying the directory. In practice, the message may not
441 appear until after &lt;ENTER&gt; is keyed, i.e. the build stalls.
442 </para>
443
444 <para>
445 That directory is used for a (probably random) telemetry identifier.
446 Creating this in the build directory, and deleting that after the
447 installation, prevents it being used. If you wish to participate in
448 telemetry, export MOZBUILD_STATE_PATH to point to its default directory.
449 </para>
450
451 <para>
452 <command>./mach build</command>: <application>Firefox</application>
453 now uses this <application>python</application> script to run the
454 build and install.
455 </para>
456
457 <para>
458 <option>./mach build --verbose</option>: Use this alternative if you
459 need details of which files are being compiled, together with any C or
460 C++ flags being used. But do not add '--verbose' to the install command,
461 it is not accepted there.
462 </para>
463
464 <para>
465 <option>./mach build -jN</option>: The build should, by default, use
466 all the online CPU cores. If using all the cores causes the build to swap
467 because you have insufficient memory, using fewer cores can be faster.
468 </para>
469
470<!--
471 <para>
472 <command>mkdir -pv /usr/lib/mozilla/plugins</command>: This ensures
473 that <filename class="directory">/usr/lib/mozilla/plugins/</filename>
474 exists.
475 </para>
476
477 <para>
478 <command>ln -sv ... /usr/lib/firefox/browser</command>:
479 This command creates a symbolic link to <filename
480 class="directory">/usr/lib/mozilla/plugins</filename>. It's not really
481 needed, as <application>Firefox</application> checks <filename
482 class="directory">/usr/lib/mozilla/plugins</filename> by default, but the
483 symbolic link is made to keep all the plugins installed in one folder.
484 </para>
485-->
486
487 </sect2>
488
489 <sect2 role="configuration">
490 <title>Configuring Firefox</title>
491
492 <para>
493 If you use a desktop environment like <application>Gnome</application> or
494 <application>KDE</application> you may like to create a
495 <filename>firefox.desktop</filename> file so that
496 <application>Firefox</application> appears in the panel's menus. <!--If you
497 didn't enable startup-notification in your mozconfig change the
498 StartupNotify line to false.--> As the
499 <systemitem class="username">root</systemitem> user:
500 </para>
501
502<screen role="root"><userinput>mkdir -pv /usr/share/applications &amp;&amp;
503mkdir -pv /usr/share/pixmaps &amp;&amp;
504
505cat &gt; /usr/share/applications/firefox.desktop &lt;&lt; "EOF" &amp;&amp;
506<literal>[Desktop Entry]
507Encoding=UTF-8
508Name=Firefox Web Browser
509Comment=Browse the World Wide Web
510GenericName=Web Browser
511Exec=firefox %u
512Terminal=false
513Type=Application
514Icon=firefox
515Categories=GNOME;GTK;Network;WebBrowser;
516MimeType=text/html;text/xml;application/xhtml+xml;application/vnd.mozilla.xul+xml;text/mml;x-scheme-handler/http;x-scheme-handler/https;
517StartupNotify=true</literal>
518EOF
519
520ln -sfv /usr/lib/firefox/browser/chrome/icons/default/default128.png \
521 /usr/share/pixmaps/firefox.png</userinput></screen>
522
523 <sect3><title>Configuration Information</title>
524
525 <para>
526 The application settings for firefox are accessible by keying
527 <command>about:config</command> in the address bar.
528 </para>
529
530 <para>
531 Occasionally, getting working sound in
532 <application>firefox</application> can be a problem. Although upstream
533 prefers pulseaudio,
534 on balance using <application>Alsa</application> may be easier.
535 </para>
536
537 <para>
538 If you enabled <application>Alsa</application> for sound, you may need
539 to alter one variable to get working sound. If you run
540 <command>firefox</command> from a term and try to play something with
541 sound you might encounter error messages like:
542 </para>
543
544 <para>
545 <literal>Sandbox: seccomp sandbox violation: pid 3941, tid 4030,
546 syscall 16, args 48 2147767296 139909894784796 0 0 0.</literal>
547 </para>
548
549 <para>
550 That was on x86_64, on i686 the syscall number is 54. To allow this
551 syscall, in <command>about:config</command> change
552 <command>security.sandbox.content.syscall_whitelist</command> to 16
553 (or 54 if using i686).
554 </para>
555
556 <para>
557 If you use <command>pulseaudio</command> in a Desktop Environment, it
558 might already be started by that DE. But if it is not, although
559 firefox-57 managed to start it, firefox-58 did not. If you run
560 <command>firefox</command> from a term and this problem is present,
561 trying to play sound will
562 encounter error messages warning <literal>Can't get cubeb
563 context!</literal>
564 </para>
565
566 <para>
567 The fix for this is to close firefox, start pulseaudio to check it
568 does start (if not, read the information on Configuring in <xref
569 linkend="pulseaudio"/>) and restart firefox to check it is working.
570 If it now works, add the following to your <filename>~/.xinitrc</filename>:
571<phrase revision="sysv">
572<literal>pulseaudio --verbose --log-target=syslog&amp;</literal></phrase>
573<phrase revision="systemd">
574<literal>pulseaudio --verbose --log-target=journald&amp;</literal></phrase>
575 (unfortunately, on some systems this does not work).
576 </para>
577
578 <para>
579 You may wish to use multiple profiles within firefox. To do that, invoke
580 firefox as <command>firefox --ProfileManager</command>. You can also
581 check which profile is currently in use from
582 <command>about:profiles</command>.
583 </para>
584
585 <para>
586 Although WebRender (using the GPU for compositing) is not used by
587 default, it now appears to work well on supported hardware (ATI, Nvidia
588 and Intel GPUs with Mesa-18 or later. For an explanation, please see
589 <ulink
590 url="https://hacks.mozilla.org/2017/10/the-whole-web-at-maximum-fps-how-webrender-gets-rid-of-jank/">hacks.mozilla.org</ulink>.
591 The only downside seems to be that on a machine with limited RAM it might
592 use more RAM.
593 </para>
594
595 <para>
596 To check if WebRender is being used, look in about:support. In the Graphics
597 section Compositing will either show 'Basic' (i.e. not in use) or
598 'WebRender'. To enable it, go to about:config and change gfx.webrender.all
599 to True. You will need to restart firefox.
600 </para>
601
602 <para>
603 It may be useful to mention the processes from firefox which can appear in
604 <command>top</command> - as well as firefox itself, there may be multiple
605 Web Content processes, and now an RDD Process (Remote Data Decoder) which
606 appears when playing web videos encoded with av1 (libdav1d). If WebRender
607 has been enabled, a GPU Process will also appear when firefox has to
608 repaint (e.g. scrolling, opening a new tab, or playing a video).
609 </para>
610
611 </sect3>
612 </sect2>
613
614 <sect2 role="content">
615 <title>Contents</title>
616
617 <segmentedlist>
618 <segtitle>Installed Programs</segtitle>
619 <segtitle>Installed Libraries</segtitle>
620 <segtitle>Installed Directory</segtitle>
621
622 <seglistitem>
623 <seg>
624 firefox
625 </seg>
626 <seg>
627 Numerous libraries, browser components, plugins, extensions, and
628 helper modules installed in /usr/lib/firefox
629 </seg>
630 <seg>
631 /usr/lib/firefox and /usr/lib/mozilla
632 </seg>
633 </seglistitem>
634 </segmentedlist>
635
636 <variablelist>
637 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
638 <?dbfo list-presentation="list"?>
639 <?dbhtml list-presentation="table"?>
640
641 <varlistentry id="firefox-legacy-prog">
642 <term><command>firefox</command></term>
643 <listitem>
644 <para>
645 is a <application>GTK+-3</application> internet browser that uses
646 the Mozilla Gecko rendering engine
647 </para>
648 <indexterm zone="firefox-legacy firefox-legacy-prog">
649 <primary sortas="b-firefox">firefox</primary>
650 </indexterm>
651 </listitem>
652 </varlistentry>
653
654 </variablelist>
655
656 </sect2>
657
658</sect1>
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