… or any other Linux distribution.
Open a terminal and run the following commands: sudo apt-get update sudo apt-get install flashplugin-installer. To update Firefox, run the following commands: sudo apt-get update sudo apt-get install firefox. Don't forget to restart Firefox. Add the Firefox and Thunderbird Nightly PPA and install the latest Firefox Nightly alpha build in Linux Mint or Ubuntu by typing the following commands in a terminal: sudo add-apt-repository ppa:ubuntu-mozilla-daily/ppa sudo apt update sudo apt install firefox-trunk To launch the application, search for 'Nightly' in your applications menu.
- Update Ubuntu From Terminal. The newer release of Ubuntu always includes the latest version of packages. Hence, you should update your current list of packages to their latest version.
- With the ampersand (&) you can start the application in the background and still use the terminal. Type: [email protected]:# firefox & To start firefox in the background. Output of the application will still be in the terminal. Or, if firefox is already running you can do this: Ctrl+z to put firefox.
Photo: janeb13 / Pixabay, Pixabay License
This how-to explains how to install Firefox on Linux, with or without replacing an existing Firefox installation.
Firefox 87 was officially released on March 23, 2021.
Firefox 88 will be released on April 20, 2021.
More information on Firefox release dates (including beta, nightly and ESR versions) can be found 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 management system (aka. Software Center, Software Manager, Synaptic, apt…) of all major distributions. Concerning updates: they will appear automatically in the package manager. It may take a few days for the update to show up, because each Firefox release has to be tested with each distribution.
A. Install Firefox 87 in 5 easy steps
B. Firefox PPAs, Beta, Updates
C. Uninstall Firefox
D. Tips & tricks
1. Speed up the scrolling speed
2. Disable the built-in PDF reader
3. Profiles and instances
A. Install Firefox in 5 easy steps
Download Firefox from the official Mozilla Firefox page:
Download alternative versions (beta, developer edition, nightly) from the official channels page:
A 64 bit build is also available in the x86_64 directory of Mozilla’s FTP.
This how-to supposes that the downloaded file is saved in the “Downloads” directory located in your home directory.
The downloaded file is a compressed .tar.bz2 archive. In case you want to learn more on these extensions: tar, bzip2. To extract this juicy archive, open the Downloads directory. Look for a file named firefox-87.0.tar.bz2, right-click on it and select “extract here”.
Alternatively, you can extract the archive from the command line:
tar xjf firefox-87.0.tar.bz2
For those interested, here are the tar arguments used in the command:
x : eXtract
j : deal with bzipped file
f : read from a file (rather than a tape device)
The firefox-87.0.tar.bz2 archive can now be deleted.
3. Move to /opt
External programs like LibreOffice, Google Chrome, the defunct Adobe reader, … are all installed in the /opt directory. If you want more info about why /opt is the right place to install programs on Linux, check out these two links:
Where to install my products on Linux?
Filesystem Hierarchy Standard
You may need to create /opt first:
sudo mkdir /opt
On the contrary, if you already had a previous Firefox version installed in the
/opt directory, remove it with the following command:
sudo rm -r /opt/firefox
Now move the Firefox directory (which was created in your Downloads folder during extraction) to /opt:
sudo mv firefox /opt/firefox87
4. Set up symbolic links
Depending on your usage pattern, follow the instructions for case 1 OR for case 2.
Case 1: you want to use Firefox 87 as your default browser:
“Backup” the old Firefox launcher:
sudo mv /usr/bin/firefox /usr/bin/firefox-old
Create a symbolic link pointing to the new Firefox version:
sudo ln -s /opt/firefox87/firefox /usr/bin/firefox
There is no need to update your icons/shortcuts; they should now launch the new version of Firefox.
Your old Firefox version is still available. If you want to use it, run
firefox-old in a terminal or create shortcuts/icons referring to
Case 2: you want to keep using your “old” Firefox by default:
Create a symbolic link pointing to the new Firefox version:
sudo ln -s /opt/firefox87/firefox /usr/bin/firefox87
Launch the newly installed Firefox by running
firefox87 in a terminal, or create shortcuts/icons referring to
Firefox will manage its own updates independently of your system’s package manager, and download subsequent releases automatically. There will be no need to repeat the whole installation procedure for every new Firefox release… Enjoy Firefox!
B. Firefox PPAs, Beta, Updates, other distributions
1. Ubuntu: no ubuntu-mozilla-daily ppa!
Many howtos on this subject will tell you to install Firefox pre-versions through Mozilla’s ppaubuntu-mozilla-daily. Using this ppa will not only install the latest Firefox 89 daily build, once called “minefield” – updated daily! It will also update your 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 you’re doing!
2. The official Firefox Beta PPA
The “Official PPA for Firefox Beta” (firefox-next) will replace your current Firefox installation with the current available version in Mozillas Beta channel. Simply run these two commands in a terminal:
sudo apt-add-repository ppa:mozillateam/firefox-next
sudo apt-get update && sudo apt-get upgrade
Note: you can use 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 after the official release – so does Linux Mint. Here are a few examples of how many days Ubuntu and Linux Mint need to push the update:
- Linux Mint: Firefox 73 was released on February 11, 2020. MintUpdate dispatched the update on February 15, only four days after the official release. Ubuntu was even faster and made the new Firefox available on February 13 (for Eoan and Bionic).
- Firefox 78 was released by Mozilla on June, 2. 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 only one day later.
- Firefox 82 was officially released on October 20, 2020. Ubuntu and Linux Mint repositories were updated the same day.
- Firefox 83 was released by Mozilla on November 17, 2020. Both Ubuntu and Linux Mint made the new release available on November 18, only one days after the official release.
4. Linux Mint 20 “Ulyana”, Debian 10.x “Buster”, Manjaro Linux, …
Firefox 87 running on Ubuntu 21.04 (Hirsute Hippo) Beta
This howto has been tested with success on the following distributions, with Firefox 4 to 87 and Firefox Beta:
RHEL/Oracle Linux 8.3 & 7.9
Debian 9.x “Stretch” (long-term support until June 2022)
Debian 10.x “Buster” (support until 2022, LTS until 2024)
Linux Mint 19 “Tara” LTS, 19.1 “Tessa”, 19.2 “Tina”, 19.3 “Tricia” (support until April 2023 for all 19.x releases)
Linux Mint 20 “Ulyana” and 20.1 “Ulyssa”
Ubuntu 18.04 LTS “Bionic Beaver” (Long Term Support until April 2023)
Ubuntu 20.04 LTS “Focal Fossa” (support until April 2025)
Ubuntu 20.10 “Groovy Gorilla” (support until July 2021)
Ubuntu 21.04 “Hirsute Hippo” (Beta)
Manjaro Linux 20.2 “Nibia”, 21 “Ornara”
This installation procedure is reliable and should work with a wide range of distributions. Please share your experience with MX Linux, Pop!_OS and OpenSuse in the comments.
C. Uninstall/remove Firefox (non-ppa installations)
Remove the Firefox directory:
sudo rm -r /opt/firefox87
You should also consider changing back or removing symbolic links which pointed to the old Firefox directory. Use this command:
sudo mv /usr/bin/firefox-old /usr/bin/firefox
Update Firefox Ubuntu Terminal Software
Or remove the
D. Tips & tricks for Firefox on Linux (or Windows)
Just installed or upgraded Firefox? Here are a few setting you might want to change to get the most out of Firefox.
1. Speed up the mouse wheel scrolling speed
The default mouse wheel scrolling speed in Firefox is fine for Laptops, but 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:configin the address bar and press Enter. Click on “Accept the Risk and Continue”.
- In the Filter box, type or paste
- Change the value from 5 (default) to any integer value you like, 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 60 seems to be a good choice. I use
50on a 32″ Monitor with a 2560 × 1440 resolution.
Changes are immediate, you can open another tab or window to test and fine-tune.
Increase the mouse wheel acceleration
On higher resolution displays, increasing
min_line_scroll_amount may not be enough. Mouse wheel acceleration, though disabled by default, is extremely useful for scrolling through long documents. Repeat the steps described above, but this time search for
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,
4is a sweet spot.
mousewheel.acceleration.factor: The multiplicative factor used to determine the rate of acceleration. The acceleration computations create a constant acceleration effect, but this value can control the level of acceleration. Default: 10, suggested values: 6 to 16.
There are a few more variables which influence the vertical scrolling speed and can be changed safely, for example:
2. Disable the built-in PDF reader in Firefox
The built-in PDF viewer in Firefox has progressed continuously since its introduction in 2013, but I still prefer using the distribution’s document viewer (Evince/Xreader/…). Here is how to disable the built-in PDF viewer or use the system viewer:
- Click the hamburger menu button and choose “Preferences”. Alternatively, enter
about:preferencesin the address bar.
- In the General panel, go down to the Applications section.
- Find PDF in the list and change it to the desired value.
Disable Firefox PDF viewer (pdfjs) completely
If you want to disable the built-in PDF viewer entirely, follow these steps:
- type or paste
about:configin the address bar
- search for
- click on the toggle button to turn the value from “false” to “true”.
3. Run multiple Firefox profiles and instances simultaneously
Problem: if you run different Firefox versions with the same 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
Linux Install Firefox From Terminal
-no-remote option starts a new instance of Firefox even if there is already a Firefox instance running. Use
-no-remote to run Firefox 87 and Firefox 88 (Beta) instances at the same time.
Let’s say that you’ve created two profiles: ffox87-profile and ffox88-profile. You can start one instance of Firefox 87 and one instance of Firefox 88 with the following commands:
By Johannes Eva, December 2010 – April 2021
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The update option is hidden or removed in the Ubuntu Release Version. I don't quite understand what they are saying on installing or updating FireFox on the Ubuntu site?! I was hoping to receive an easier explanation as to how to either update FireFox to a Mozilla Version or how to install the Original Mozilla FireFox Version!! I am new to Ubuntu and don't quite understand the Linux Lingo! I tried to add an image, but it would not upload my image. Thanks and I look forward to hearing back from someone :^)