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Firefox – open source web browser based on the Gecko engine, focused on privacy and security with support for extensions



Extensive customization options for the Firefox browser interface:

  • Show/hide the menu bar,
  • Show/remove the bookmarks bar,
  • Show/remove the title bar,
  • Place tools/icons in any order or remove/show them,
  • Change the theme.

Features software

  • Transition to Firefox from other browsers. Firefox can automatically transfer your bookmarks, log, and other data from Chrome without deleting it or interfering with any of its settings;

Smart address bar (domains):

  • Searches your bookmarks, history, and tabs when you type in the address bar,
  • You can disable AutoFill in the address bar or restrict results by excluding open tabs, bookmarks, or browsing history;


  • Export Firefox bookmarks to an HTML file to create a backup or transfer bookmarks,
  • Sorting bookmarks in the library by: name, tag, alphabet, date added, and more,
  • Firefox allows you to set tags for bookmarks so that you can categorize and find them using keywords during your search,
  • Deleting bookmarks;

  • The Firefox Task Manager will show you which tabs or extensions consume a lot of memory or power;
  • The Pocket bookmark service is built into the Firefox browser, which allows you to save various content: sites, pages, videos, and more;
  • Synchronization. Your Firefox account allows you to sync your data and settings (such as your bookmarks, browsing history, passwords, open tabs, and installed updates) between all your devices. This is absolutely free;
  • Support for web Push notifications. Web Push notifications allow websites to notify you of new messages or updated content;
  • Setting up the home page and new tab: you can link any web page you need;
  • Support for browsing history;
  • There is a built in tool for viewing PDF files;
  • Spell check support;
  • View for reading. Read view is a function of Firefox that removes unnecessary elements from the page, such as buttons, ads, and background images, and changes the text size, contrast, and layout for better readability;
  • Saving web pages and opening them later (does not require an Internet connection);
  • Protection and privacy. Firefox blocks many common trackers and malicious scripts. Security settings: standard, strict personal;
  • Support for extensions that significantly expand the browser’s capabilities;
  • There are tools for web developers;
  • Full-screen mode (F11 quick call);
  • Convenient password memory and further storage of information for authorization to sites;
  • Font and color settings;
  • Managing cookies and site data (you can specify which websites are allowed to always or never use cookies and site data);

Configuring access permissions:

  • to your location,
  • to your camera,
  • to your microphone,
  • to your virtual reality devices,
  • permission to send you notifications,
  • auto-playback of audio and video;

  • Support working through proxy;
  • Managing security certificates;
  • The Picture-in-picture function allows you to detach videos from a web page into a floating window, always located on top of all Windows, for viewing while continuing to work in other tabs. You can move the Picture-in-Picture window around the screen and resize it as you wish.

Screenshots Software


The software Firefox is available for installation on Linux, Windows and macOS, as well as mobile applications for Android and iOS.

Installation methodOS
PPAUbuntu* 16.04/18.04/19.04/20.04, Linux Mint 18/19, Debian
DebUbuntu* 16.04/18.04/19.04/20.04, Linux Mint 18/19, Debian
RPMopenSUSE, Rosa Linux, Mageia, ALT Linux, Fedora, CentOS, Red Hat Enterprise Linux and others
GNOME/KDE Software CenterUbuntu* 16.04/18.04/19.04/20.04, Linux Mint 18/19, Debian
SnapUbuntu, Linux Mint, Debian, Arch Linux, Fedora, CentOS, KDE Neon, openSUSE, elementary OS, Manjaro, Red Hat Enterprise Linux
FlatpakUbuntu, Linux Mint, Debian, Arch Linux, Fedora, CentOS, KDE Neon, openSUSE, elementary OS, Manjaro, Red Hat Enterprise Linux
Mobile appsAndroid, iOS

*Ubuntu (GNOME), Kubuntu (KDE), Xubuntu (XFCE), Lubuntu (LXDE)

Install Software via PPA repository

Stable version of the browser with extended support period (Firefox ESR):

sudo add-apt-repository ppa:jonathonf/firefox-esr
sudo apt-get update
sudo apt-get install firefox-esr

Stable version of the browser:

sudo add-apt-repository ppa:ubuntu-mozilla-security/ppa
sudo apt-get update
sudo apt-get install firefox

Beta version (unstable, latest features):

sudo add-apt-repository ppa:ubuntu-mozilla-daily/ppa
sudo apt-get update
sudo apt-get install firefox

Install Software via Deb package

Install Software via RPM package

Install Software via Snap package

sudo snap install firefox

Install Software via Flatpak package

flatpak install flathub org.mozilla.firefox

Install Software via EXE package on Windows

Install Software via DMG package for macOS

Version for Android

Version for iOS

Software Information

Language Interface:English, Russian, Deutsch, Spanish, French and others
Description version:77.0.1
Developer:Mozilla Corporation, Community
Programming language:C++, XUL, JavaScript

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