I was mind blown when after fresh installing 22.04 I saw firefox taking 10 seconds to cold start on my state of the art rig - Intel Core i9 12900K / G.Skill 64 GB DDR5 5600 Mhz / Samsung 980 PRO M.2 PCI4 / Nvidia RTX 3080.
So I did what many people recommended - uninstalled snap firefox, completely exterminated snap and installed it using the mozillateam ppa:
sudo add-apt-repository ppa:mozillateam/ppa sudo apt install -t 'o=LP-PPA-mozillateam' firefox
All good, Firefox 99 is installed.
But now I have a problem. There's still an older version 98 lurking in the apt:
$ sudo apt list --upgradable -a Listing... Done firefox/jammy 1:98.0.2+build1-1~xtradeb3 amd64 [upgradable from: 99.0.1+build1-0ubuntu0.22.04.1~mt1] firefox/jammy 1:1snap1-0ubuntu2 amd64 firefox/jammy,now 99.0.1+build1-0ubuntu0.22.04.1~mt1 amd64 [installed,upgradable to: 1:98.0.2+build1-1~xtradeb3]
And as soon as I do
$ sudo apt dist-upgrade Reading package lists... Done Building dependency tree... Done Reading state information... Done Calculating upgrade... Done The following packages will be upgraded: firefox 1 to upgrade, 0 to newly install, 0 to remove and 0 not to upgrade. Need to get 62.8 MB of archives. After this operation, 555 kB disk space will be freed. Do you want to continue? [Y/n]
This actually downgrades the current version 99 to version 98. Then firefox refuses to start and demands creating a new profile because the version was downgraded. WTF? How do I prevent firefox being "upgraded" from anywhere else but the mozillateam repository it was installed from?
$ sudo apt cache policy firefox E: Invalid operation cache
$ apt policy firefox firefox: Installed: 99.0.1+build1-0ubuntu0.22.04.1~mt1 Candidate: 1:98.0.2+build1-1~xtradeb3 Version table: 1:98.0.2+build1-1~xtradeb3 500 500 https://ppa.launchpadcontent.net/xtradeb/apps/ubuntu jammy/main amd64 Packages 1:1snap1-0ubuntu2 500 500 http://gb.archive.ubuntu.com/ubuntu jammy/main amd64 Packages *** 99.0.1+build1-0ubuntu0.22.04.1~mt1 500 500 https://ppa.launchpadcontent.net/mozillateam/ppa/ubuntu jammy/main amd64 Packages 100 /var/lib/dpkg/status
EDIT3: Fix, I think
Thanks to @Henning Kockerbeck suggestion I've realized that adding ppa priority is the fix.
sudo vim /etc/apt/preferences.d/mozillateamppa
Package: firefox* Pin: release o=LP-PPA-mozillateam Pin-Priority: 501