ansible-desktop/roles/ubuntu/tasks/firefox.yml

- become: yes
  block:
    - name: Gather the package facts
      ansible.builtin.package_facts:
        manager: auto

    - name: remove snap
      community.general.snap:
        name: firefox
        state: absent
      when:
        - "'snapd' in ansible_facts.packages"
        - "'firefox' in ansible_facts.packages"
        - ansible_facts.packages['firefox'][0].version == "1:1snap1-0ubuntu2"

    - name: remove snap
      community.general.snap:
        name: firefox
        state: disabled
      when:
        - "'snapd' in ansible_facts.packages"
        - "'firefox' in ansible_facts.packages"
        - ansible_facts.packages['firefox'][0].version == "1:1snap1-0ubuntu2"

    - name: remove apt snap wrapper version
      apt:
        state: absent
        pkg:
          - firefox
      when:
        - "'firefox' in ansible_facts.packages"
        - ansible_facts.packages['firefox'][0].version == "1:1snap1-0ubuntu2"

    - name: Add linux mint source list
      ansible.builtin.apt_repository:
        repo: deb http://packages.linuxmint.com vera upstream
        state: present

    - name: set linux mint for higher priority
      copy:
        src: etc/apt/preferences.d/mint-firefox
        dest: /etc/apt/preferences.d/mint-firefox

    - name: Remove unattended upgrades
      file:
        path: /etc/apt/apt.conf.d/51unattended-upgrades-firefox
        state: absent

    - name: Remove mozilla ppa
      apt_repository:
        repo: ppa:mozillateam/ppa
        state: absent

    - name: install equivs
      apt:
        update_cache: yes
        state: latest
        pkg:
          - equivs

    - name: copy fakepackage to satisfy dependencies
      copy:
        src: tmp/fakepkg
        dest: /tmp/fakepkg

    - name: make fake ubuntu-system-adjustments package
      shell:
        cmd: equivs-build /tmp/fakepkg
        chdir: /tmp

    - name: Install a .deb package
      ansible.builtin.apt:
        deb: /tmp/ubuntu-system-adjustments_2021.12.16_all.deb

    - name: install browser
      apt:
        allow_downgrade: true
        update_cache: yes
        state: latest
        pkg:
          - firefox

    - name: Set firefox as x-www-browser
      command: update-alternatives --set x-www-browser /usr/bin/firefox

    - name: update xdg default-web-browser
      command: xdg-settings set default-web-browser firefox.desktop