- Firefox Esr 65
- [MAC] How To Install Firefox ESR V52 64bit
- Firefox Esr 32-bit
- Cached
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- Firefox Esr 78.6.1
Index of /pub/firefox/releases/50.0/ Type Name Size Last Modified; Dir. Dir: linux-i686/ Dir: linux-x8664-EME-free/ Dir. Download Firefox ESR - The latest official version of Firefox that comes with support for both Windows XP and Windows Vista, especially aimed at organizations or public institutions with slightly. Firefox 10 ESR is the first Extended Support Release (ESR) as previously on January 10, 2012, where the Mozilla Foundation announced the availability of an ESR version of Firefox. Firefox ESR is intended for groups who deploy and maintain the desktop environment in large organizations such as universities and other schools, county or city. Firefox ESR Releases. FirefoxESR-68.12.0; FirefoxESR-68.11.0; FirefoxESR-68.10.0; FirefoxESR-68.8.0.
Firefox is Mozilla's web browser. It is not the same thing as Firefox OS, which was a full operating system.

Aurora is the 'unbranded' version of Mozilla's Firefox.
Installation
USE flags
USE flags forwww-client/firefoxFirefox Web Browser
clang | Use Clang compiler instead of GCC |
dbus | Enable dbus support for anything that needs it (gpsd, gnomemeeting, etc) |
debug | Enable extra debug codepaths, like asserts and extra output. If you want to get meaningful backtraces see https://wiki.gentoo.org/wiki/Project:Quality_Assurance/Backtraces |
eme-free | Disable EME (DRM plugin) cabability at build time |
geckodriver | Enable WebDriver support |
gmp-autoupdate | Allow Gecko Media Plugins (binary blobs) to be automatically downloaded and kept up-to-date in user profiles |
hardened | Activate default security enhancements for toolchain (gcc, glibc, binutils) |
hwaccel | Force-enable hardware-accelerated rendering (Mozilla bug 594876) |
jack | Add support for the JACK Audio Connection Kit |
lto | Enable Link Time Optimization (LTO). Requires Gold linker when using GCC or LDD linker when using Clang |
openh264 | Use media-libs/openh264 for H.264 support instead of downloading binary blob from Mozilla at runtime |
pgo | Add support for profile-guided optimization using gcc-4.5, for faster binaries. This option will double the compile time. |
pulseaudio | Add support for PulseAudio sound server |
screencast | Enable support for remote desktop and screen cast using media-video/pipewire |
selinux | !!internal use only!! Security Enhanced Linux support, this must be set by the selinux profile or breakage will occur |
system-av1 | Use the system-wide media-libs/dav1d and media-libs/libaom library instead of bundled. |
system-harfbuzz | Use the system-wide media-libs/harfbuzz and media-gfx/graphite2 instead of bundled. |
system-icu | Use the system-wide dev-libs/icu instead of bundled. |
system-jpeg | Use the system-wide media-libs/libjpeg-turbo instead of bundled. |
system-libevent | Use the system-wide dev-libs/libevent instead of bundled. |
system-libvpx | Use the system-wide media-libs/libvpx instead of bundled. |
system-webp | Use the system-wide media-libs/libwebp instead of bundled. |
wayland | Enable dev-libs/wayland backend |
wifi | Enable wireless network functions |
Firefox Esr 65
The above list of USE flag is not comprehensive. Use equery (part of app-portage/gentoolkit) for a full list:
Emerge
[MAC] How To Install Firefox ESR V52 64bit
To compile the source version of Firefox ESR, issue:
Be aware that non-ESR versions are not getting stabilized.
Emerging the source version of Firefox can be a long process; a pre-compiled (binary) version does exist in the Gentoo repository, however users of the pre-built package should note the warning below and this message. To emerge the Firefox binary, issue:
The disadvantage of using pre-compiled www-client/firefox-bin package is that almost all of the USE flags in the list above cannot be set. Be aware that setting these flags while using this package will not alter the binary.
Configuration
Running under Wayland
Since Firefox 65, it is possible to run Firefox natively under Wayland by launching it with the GDK_BACKEND=wayland
environment variable set after having emerged Firefox with the USE flag wayland
enabled. From a terminal:
To set Firefox to always open using the Wayland backend, set the following environment variable in the user's shell. Bash is the default user shell on Gentoo systems:
~/.bash_profile
Enabling multitouch
Xinput2 scrolling
This brings touch scrolling and multitouch support for Firefox:
MOZ_USE_XINPUT2environment variable has to be set to a value of 1
in /etc/env.d/80firefox, or just before launching firefox in a shell. for example:
This also eliminates the predefined scroll step size for touchpad scrolling! All scrolling will be really smooth.
Wacom tablets/touchscreens may need extra configuration so they emit true touch events for X.
Multitouch zoom
This only works when the multitouch events reach Firefox, therefore the Xinput2
activation above has to be done first.
Description | about:config option | Value |
---|---|---|
Multitouch activation | gestures.enable_single_finger_input | False |
Zoom in | browser.gesture.pinch.in | cmd_fullZoomReduce |
Zoom out | browser.gesture.pinch.out | cmd_fullZoomEnlarge |
Middle mouse scroll (autoscroll)
Traditionally in Linux, the middle mouse button is used to paste the currently selected (highlighted) text into a text field. On Windows systems, the middle mouse button in Firefox is used for click-and-drag scrolling up and down the page. This functionality can be enabled in Firefox by opening about:config
and setting the following value[1]:
general.autoScroll = true
Middle click-and-drag scrolling should now be enabled.
Although not necessary, sometimes it is desirable to disable all other middle-click functionality within Firefox when using click-and-drap scrolling. Open about:config
and set the following values to disable middle-click functionality:
middlemouse.contentLoadURL = false
middlemouse.openNewWindow = false
middlemouse.paste = false
Threads
Firefox >= 54 has 4 threads enabled by default. Threads can be adjusted by modifying the following in the about:config
interface:
Description | about:config option | Value |
---|---|---|
Increase the threads | dom.ipc.processCount | N |
Firefox Esr 32-bit
Where N
is an integer number.
Audio backend
Firefox's cubeb audio library supports a number of different backends[2][3].
Description | about:config option | Value |
---|---|---|
JACK | media.cubeb.backend | jack |
Disabling percent-encoding
Normally, URLs that are copied from the address bar get percent-encoded. This may cause an annoyance when certain non-Latin symbols (such as Cyrillic) get encoded, as they become unreadable to humans.
To disable percent-encoding when copying from the address bar, set the about:config
option network.standard-url.escape-utf8
to false
.
Unfortunately Firefox does not support non-Latin symbols in anchors, those remain encoded (not percent-encoded, though).
Disable enforced digital signatures verification in Firefox >=48
This concerns mandatory add-ons signature in Firefox and can lead to security issues.
Method 1
Create this file:
Then insert this:
/usr/lib/firefox/defaults/pref/channel-prefs.js
Method 2


Cached
Method 3
More Videos For Firefox ESR »
This patch works for both firefox 49 and firefox 51, and seems to be robust to changes.
Firefox Esr 78.6.1
/etc/portage/patches/www-client/firefox/no-signature-force-check.patch
