Mozilla Firefox

1. Linux

1.1. Installation

Make sure that GTK3 is available on a system without a desktop environment to prevent the XPCOM error. 
XPCOMGlueLoad error for file /opt/firefox-61.0.1/libmozgtk.so:
libgtk-3.so.0: cannot open shared object file: No such file or directory
Couldn't load XPCOM.

Enter the following commands at a Command Line.

sudo apt-get install libgtk-3-0                                 # Prevent XPCOM error
sudo apt-get install libdbus-glib-1-2                           # Prevent XPCOM error
sudo apt-get install libxt6                                     # Prevent XPCOM error

Check for the latest version at https://www.mozilla.org/en-US/firefox/all.

Enter the following commands at a Command Line.

cd /tmp
wget https://ftp.mozilla.org/pub/firefox/releases/61.0.1/linux-i686/en-US/firefox-61.0.1.tar.bz2        # 32-bit
wget https://ftp.mozilla.org/pub/firefox/releases/61.0.1/linux-x86_64/en-US/firefox-61.0.1.tar.bz2      # 64-bit
tar xjf firefox-61.0.1.tar.bz2
sudo mv firefox /opt/firefox-61.0.1
sudo ln -s /opt/firefox-61.0.1/firefox /usr/bin/firefox
firefox -version                                                # 61.0.1

1.2. Headless

See https://developer.mozilla.org/en-US/Firefox/Headless_mode.

Enter the following commands at a Command Line.

firefox --version
firefox --headless
firefox --headless --screenshot http://www.google.com/ncr

2. Windows

2.1. Installation

  • Run the Firefox Setup 94.0.2-x64.msi file.

2.1.1. Mozilla Maintenance Service

  • Note: If Mozilla Maintenance Service version is not the same as Mozilla Firefox, do one of the following installations.

Option: 1

  • Start File Explorer.

  • 32-bit Windows: Double-click the maintenanceservice_installer.exe in the C:\Program Files\Mozilla Firefox folder. You may not notice anything but it will do the update.

  • 64-bit Windows: Double-click the maintenanceservice_installer.exe in the C:\Program Files (x86)\Mozilla Firefox folder. You may not notice anything but it will do the update.

  • Close File Explorer.

Option: 2

  • Enter the following commands at a Command Prompt with administrative privileges.

    "C:\Program Files\Mozilla Firefox\maintenanceservice_installer.exe"             (1)
"C:\Program Files (x86)\Mozilla Firefox\maintenanceservice_installer.exe"       (2)
1 32-bit Windows.
2 64-bit Windows.

2.2. Configuration

  • Start Firefox.

  • Optional: Choose Don’t import anything.

  • Optional: Click Next.

  • Optional: Uncheck Always perform this check when starting Firefox.

  • Optional: Click No.

  • Press Alt key to show the menus.

  • Check View > Toolbars > Menu bar.

  • Select Tools > Settings.

  • Optional: Select the Home page.

  • Optional: Select Homepage and new windows > Custom URLs.

  • Optional: Type delta-web-vps.deltasoftware.frl/delta-portal.html in Paste a URL field.

  • Select the Privacy & Security page.

  • Choose Send websites a "Do Not Track" signal that you don’t want to be tracked | Always.

  • Click Cookies and Site Data | Clear Data.

    • Click Clear.

    • Click Clear Now to confirm.

  • Check Delete cookies and site data when Firefox is closed.

  • Uncheck Ask to save logins and passwords for websites.

  • Select History | Never remember history.

  • Click Restart firefox now.

  • Select Tools > Settings.

  • Select the Privacy & Security page.

  • Click History | Clear History.

    • Check Site settings.

    • Check Offline Website Data.

    • Click OK.

  • Uncheck Allow Firefox to send technical and interaction data to Mozilla.

  • Uncheck Allow Firefox to install and run studies.

  • Close Firefox.

2.3. Add-ons/Extensions

  • Start Firefox.

  • Click the (Open menu) button in the top right corner and select Add-ons and themes.

  • Select the Extensions tab.

  • Install the following extensions by performing the actions below.

    Disconnect
HTTPS Everywhere
uBlock Origin

  • Search for the extension.

  • Select the extension.

  • Click Add to Firefox.

  • Click Add to confirm.

  • Click Okay.

  • Close Firefox.