How To Download Older Version Of Fedora

… or any other Linux distribution.

Terminal updated on March iii, 2022

Photo: janeb13 / Pixabay, Pixabay License

This how-to explains how to install Firefox on Linux, with or without replacing an existing Firefox installation.

Firefox 97 was officially released on Feb 8 , 2022.
Firefox 98 will be released on March 8, 2022.

More information on Firefox release dates (including beta, nightly and ESR versions) can be plant on the official Firefox Release Calendar.

Warning for inexperienced Linux users: stick to the Firefox version included with your Linux distribution! Firefox can be installed or uninstalled through the package direction system (aka. Software Center, Software Manager, Synaptic, apt…) of all major distributions. Concerning updates: they will appear automatically in the bundle manager. It may take a few days for the update to testify up, because each Firefox release has to be tested with each distribution.

A. Install Firefox in five easy steps

i. Download

Download Firefox from the official Mozilla Firefox page:
world wide web.mozilla.com/firefox/

Download culling versions (beta, programmer edition, nightly) from the official channels page:
world wide web.mozilla.com/firefox/channels/

A 64 scrap build is also available in the x86_64 directory of Mozilla'south FTP.

This how-to supposes that the downloaded file is saved in the "Downloads" directory located in your home directory.

two. Extract

The downloaded file is a compressed .tar.bz2 archive. In instance y'all want to learn more on these extensions: tar, bzip2. To extract this juicy annal, open up the Downloads directory. Look for a file named firefox-97.0.tar.bz2, right-click on information technology and select "extract here".

Alternatively, you tin can extract the annal from the control line:
cd ~/Downloads/ tar xjf firefox-97.0.tar.bz2

For those interested, hither are the tar arguments used in the control:
ten : excerpt
j : bargain with bzipped file
f : read from a file (rather than a record device)

The firefox-97.0.tar.bz2 archive can now be deleted.

iii. Move to /opt

External programs like LibreOffice, Google Chrome, Skype, Zoom, … are all installed in the /opt directory. If you lot want more info about why /opt is the right identify to install programs on Linux, check out these two links:
Where to install my products on Linux?
Filesystem Bureaucracy Standard

You may need to create /opt first:
sudo mkdir /opt

On the contrary, if y'all already had a previous Firefox version installed in the /opt directory, remove information technology with the following control:
sudo rm -r /opt/firefox

Now motility the Firefox directory (which was created in your Downloads binder during extraction) to /opt:
sudo mv firefox /opt/firefox97

four. Set up symbolic links

Depending on your usage blueprint, follow the instructions for case 1 OR for case two.

Instance i: y'all want to utilize Firefox 97 as your default browser:

"Backup" the onetime Firefox launcher:
sudo mv /usr/bin/firefox /usr/bin/firefox-onetime

Create a symbolic link pointing to the new Firefox version:
sudo ln -south /opt/firefox97/firefox /usr/bin/firefox

In that location is no need to update your icons/shortcuts; they should at present launch the new version of Firefox.

Your old Firefox version is still available. If you want to employ it, run firefox-onetime in a final or create shortcuts/icons referring to firefox-sometime.

Case two: you want to keep using your "old" Firefox past default:

Create a symbolic link pointing to the new Firefox version:
sudo ln -s /opt/firefox97/firefox /usr/bin/firefox97

Launch the newly installed Firefox by running firefox97 in a terminal, or create shortcuts/icons referring to firefox97.

5. Updates

Firefox will manage its own updates independently of your organisation's package manager, and download subsequent releases automatically. There will be no need to echo the whole installation procedure for every new Firefox release… Enjoy Firefox!

B. Firefox PPAs, Beta, Updates, other distributions

1. Be conscientious with the "ubuntu-mozilla-daily" ppa!

Many howtos on this subject will tell yous to install Firefox pre-versions through Mozilla'southward ppa ubuntu-mozilla-daily. Using this ppa will not only install the latest Firefox 99 daily build, one time called "minefield" – updated daily! Information technology will also update your electric current Firefox and Thunderbird to test versions.

These testing versions are not meant to be stable or usable.
→ Avoid this ppa unless you know exactly what y'all're doing!

2. The official Firefox Beta PPA

The "Official PPA for Firefox Beta" (firefox-next) volition replace your electric current Firefox installation with the current available version in Mozillas Beta channel. Simply run these ii commands in a terminal:
sudo apt-add-repository ppa:mozillateam/firefox-next sudo apt-get update && sudo apt-get upgrade

Note: you can utilize only one of these channels (Beta or Daily) at the same time!

3. Official Ubuntu / Linux Mint updates for Firefox (automatic)

Ubuntu updates its repositories to the newest Firefox version only a few days later the official release – so does Linux Mint. Here are a few examples of how many days Ubuntu and Linux Mint need to push button the update:

Firefox 78 was released by Mozilla on June, two. Ubuntu users were asked to update on June 5 (Focal Fossa), whereas Linux Mint users received the update on June 6, 2020.
Firefox 81 came out on September 22, 2020. Ubuntu and Linux Mint users were asked to update simply 1 day subsequently.
Firefox 82 was officially released on October twenty, 2020. Ubuntu and Linux Mint repositories were updated the same solar day.
Firefox 83 was released by Mozilla on November 17, 2020. Both Ubuntu and Linux Mint fabricated the new release available on Nov 18, only one days afterwards the official release.
Firefox 89 was released on June 1^st, 2021. Ubuntu and Linux Mint dispatched the update on the same day.

4. Linux Mint 20.3 "Una", Debian xi.x "Bullseye", Manjaro Linux, …

Firefox running on Ubuntu 21.04 (Hirsute Hippo)

This howto has been tested with success on the following distributions, with Firefox four to 97 and Firefox Beta:

RHEL/Oracle Linux eight.four, 8.5 & 7.9
Debian 10.x "Buster" and 11.10 "Bullseye"
Linux Mint 19 "Tara" LTS, nineteen.i "Tessa", 19.two "Tina", xix.iii "Tricia" (support until April 2023 for all nineteen.10 releases)
Linux Mint 20 "Ulyana", 20.1 "Ulyssa", twenty.2 "Uma", 20.3 "Una"
Ubuntu xviii.04 LTS "Bionic Beaver" (Long Term Support until April 2023)
Ubuntu xx.04 LTS "Focal Fossa" (support until April 2025)
Ubuntu 21.10 "Impish Indri" (support until July 2022)
Manjaro Linux 21.ii "Qonos"

This installation procedure is reliable and should work with a wide range of distributions. Please share your experience with MX Linux, Popular!_OS and OpenSuse in the comments.

C. Uninstall/remove Firefox (non-ppa installations)

Remove the Firefox directory:
sudo rm -r /opt/firefox97

Y'all should likewise consider changing back or removing symbolic links which pointed to the old Firefox directory. Apply this command:
sudo mv /usr/bin/firefox-old /usr/bin/firefox

Or remove the firefox97 symlink:
sudo rm /usr/bin/firefox97

D. Tips & tricks for Firefox on Linux (or Windows)

Merely installed or upgraded Firefox? Here are a few setting you lot might want to change to get the near out of Firefox.

ane. Speed upwardly the mouse wheel scrolling speed

The default mouse wheel scrolling speed in Firefox is fine for Laptops, only on modern computer monitors with a respectable vertical resolution, mouse scrolling feels super-slow. Tweaking the scrolling speed is fast and easy:

Open a new tab in Firefox, type or paste about:config in the address bar and press Enter. Click on "Accept the Risk and Continue".
In the Filter box, type or paste mousewheel.min_line_scroll_amount
Change the value from 5 (default) to any integer value you similar, depending on your screen resolution, mouse, sensitivity, … The value is neither an quantity of text lines nor a number of pixel. A value between 10 and lx seems to be a good choice. I use 50 on a 32″ Monitor with a 2560 × 1440 resolution.

Changes are immediate, y'all can open up another tab or window to examination and fine-tune.

Increase the mouse wheel dispatch

On college resolution displays, increasing min_line_scroll_amount may not be plenty. Mouse wheel acceleration, though disabled by default, is extremely useful for scrolling through long documents. Repeat the steps described higher up, but this time search for mousewheel.acceleration.

mousewheel.acceleration.start: The mouse wheel "click" number at which acceleration begins to take effect. This value determines whether or not acceleration computations are applied to a given scroll event.
Suggested values: 2 (accelerations kicks in really fast) to 5. To me, 4 is a sweet spot.
mousewheel.acceleration.factor: The multiplicative factor used to decide the charge per unit of acceleration. The acceleration computations create a constant acceleration consequence, simply this value can control the level of dispatch. Default: 10, suggested values: six to sixteen.

There are a few more variables which influence the vertical scrolling speed and can be inverse safely, for example:

mousewheel.default.delta_multiplier_y
mousewheel.system_scroll_override_on_root_content.vertical.factor

two. Disable the built-in PDF reader in Firefox

The congenital-in PDF viewer in Firefox has progressed continuously since its introduction in 2013, but I still prefer using the distribution'due south certificate viewer (Evince/Xreader/…). Here is how to disable the built-in PDF viewer or utilise the system viewer:

Click the hamburger card button and choose "Preferences". Alternatively, enter virtually:preferences in the address bar.
In the General panel, go down to the Applications department.
Detect PDF in the list and alter it to the desired value.

Disable Firefox PDF viewer (pdfjs) completely

If y'all want to disable the built-in PDF viewer entirely, follow these steps:

type or paste about:config in the address bar
search for pdfjs.disabled
click on the toggle button to plough the value from "false" to "true".

three. Run multiple Firefox profiles and instances simultaneously

Trouble: if you run different Firefox versions with the aforementioned profile (profiles are compatible through major versions), Firefox will check the extensions and plugins every time you start a newer or older version.

Solution: create a profile for each Firefox version. Create new profiles with:
firefox -no-remote -ProfileManager

The -no-remote option starts a new instance of Firefox even if in that location is already a Firefox example running. Utilize -no-remote to run Firefox 97 and Firefox 98 (Beta) instances at the same time.

Permit's say that you've created two profiles: ffox97-profile and ffox98-profile. You tin can start 1 example of Firefox 97 and i case of Firefox 98 with the following commands:
firefox -no-remote -P ffox97-contour
firefox93 -no-remote -P ffox98-profile

By Johannes Eva, Dec 2010 – March 2022

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