add fallback mechanism

tasks/main.yml

@@ -4,7 +4,7 @@
   when: submodules_versioncheck|bool
 
 - name: Include OS Specific vars
-  ansible.builtin.include_vars: "{{ ansible_distribution }}.yml"
+  ansible.builtin.include_vars: "{{ lookup('first_found', firefox_params) }}"
 
 - name: Install firefox
   become: true

vars/fallback.yml

@@ -0,0 +1,18 @@
+---
+firefox_package_name:
+  - firefox
+
+firefox_plugins: []
+#  - browserpass-firefox
+#  - firefox-ublock-origin
+#  - firefox-umatrix
+#  - firefox-extension-https-everywhere
+
+firefox_language: []
+#  - firefox-i18n-de
+
+password_manager_packages: []
+#  - browserpass-firefox
+#  - pass
+#  - qtpass
+#  - pass-otp

vars/main.yml

@@ -1,3 +1,10 @@
 ---
 playbook_version_number: 9003  # should be over ninethousand
 playbook_version_path: 'role-firefox-installation_simple_chaos-bodensee_github.com.version'
+
+firefox_params:
+  files:
+    "{{ ansible_distribution }}.yml"
+    'fallback.yml'
+  paths:
+    - 'vars'