Search for firefox-tou.
The presence of that now magically removes mentions of privacy and not selling user-data in multiple places.

-    <p>
-        Firefox is independent and a part of the not-for-profit Mozilla, which fights for your online rights, keeps corporate powers in check and makes the internet accessible to everyone, everywhere. We believe the internet is for people, not profit. Unlike other companies, we don’t sell access to your data. You’re in control over who sees your search and browsing history. All that and exceptional performance too.
-    </p>

+    {% if switch('firefox-tou') %}
+      <p>Firefox is independent and a part of the not-for-profit Mozilla, which fights for your online rights, keeps corporate powers in check and makes the internet accessible to everyone, everywhere. We believe the internet is for people, not profit. You’re in control over who sees your search and browsing history. All that and exceptional performance too.</p>
+    {% else %}
+      <p>Firefox is independent and a part of the not-for-profit Mozilla, which fights for your online rights, keeps corporate powers in check and makes the internet accessible to everyone, everywhere. We believe the internet is for people, not profit. Unlike other companies, we don’t sell access to your data. You’re in control over who sees your search and browsing history. All that and exceptional performance too.</p>
+    {% endif %}

Difference here is Unlike other companies, we don’t sell access to your data.

-    <h2 class="c-section-title">The best privacy</h2>
+    {% if switch('firefox-tou') %}
+      <h2 class="c-section-title">Always protected</h2>
+    {% else %}
+      <h2 class="c-section-title">The best privacy</h2>
+    {% endif %}

Pivoting from privacy to security in the tos.

-      <li>
-        <h2>{{ ftl('does-firefox-sell') }}</h2>
-        <p>{{ ftl('nope-never-have', url=url('privacy')) }}</p>
-      </li>
+      {% if not switch('firefox-tou') %}
+        <li>
+          <h2>{{ ftl('does-firefox-sell') }}</h2>
+          <p>{{ ftl('nope-never-have', url=url('privacy')) }}</p>
+        </li>
+      {% endif %}

As you mentioned they will apparently sell your data under tos.

Where does the tos apply and where the mpl now?
They would have removed all those mentions of privacy entirely if the mpl had no use anymore, wouldn’t they?