Replace Firefox snap with non-snap version in Ubuntu

One of the problems with the snap package of Firefox is that it can't communicate with programs outside of its snap such as Keepassxc. Also if you don't like the idea of using the self-contained enviroments that snaps implement, and would prefer your applications to live together inside a single OS with its installed libraries rather than duplicating them inside each snap, then replacing the default Firefox snap in Ubuntu may appeal. I'm appending a script I wrote for Ubuntu 22.04, which also works for Ubuntu 24.04. It achives a few things:

1. Deletes Firefox snap
2. Installs Mozilla's latest Firefox binary
3. Sets up apt so that it prefers Mozilla Firefox over snap Firefox when updating packages
4. Adjusts apparmor to allow external programs like Keepassxc to communicate with Firefox

#!/bin/bash # Replace firefox snap with apt package # Ubuntu 24.04 installs the snap version of Firefox. # If you use Firefox in conjunction with the Keepassxc # browser plugin this will no longer work. # To fix this issue you must first remove the snap version of Firefox: release=`lsb_release -cs` if [ -z "$release" ]; then release="noble" fi snap_firefox_path=`which firefox` snap_res=`grep "exec /snap/bin/firefox" $snap_firefox_path` if [ $? -eq 0 ]; then echo "removing snap firefox" snap remove firefox fi #Now we have to prioritise the Mozilla version over the default snap version. if [ ! -e /etc/apt/preferences.d/mozilla-firefox ]; then echo ' Package: firefox Pin: release o=LP-PPA-mozillateam Pin-Priority: 1001 ' | sudo tee /etc/apt/preferences.d/mozilla-firefox fi # Also ensure that updates to firefox also prefer the mozilla version: if [ ! -e /etc/apt/apt.conf.d/51unattended-upgrades-firefox ]; then echo "Unattended-Upgrade::Allowed-Origins:: \"LP-PPA-mozillateam:$release\";" | sudo tee /etc/apt/apt.conf.d/51unattended-upgrades-firefox fi # Now install Firefox from Mozilla's PPA: sudo add-apt-repository -y ppa:mozillateam/ppa sudo apt update -y sudo apt install firefox -y --allow-downgrades # Disable AppArmor for Firefox to ensure the Firefox extension can connect to KeepassXC: has_readlink=`which readlink` link= if [ ! -z "$has_readlink" ] && [ -e /etc/apparmor.d/disable/usr.bin.firefox ]; then link=`readlink /etc/apparmor.d/disable/usr.bin.firefox` fi if [ -z "$link" ]; then sudo ln -s /etc/apparmor.d/usr.bin.firefox /etc/apparmor.d/disable/usr.bin.firefox sudo apparmor_parser -R /etc/apparmor.d/usr.bin.firefox fi echo "Run KeePassXC and enable browser integration (menu Tools -> Settings -> " echo "Browser Integration, tick \"Enable browser integration\" and \"Firefox\")." echo "Now run Firefox, open settings of the KeePassXC extension -> Connected Databases -> Connect"