diff --git a/what-to-do.md b/what-to-do.md
index 6a471c927..cb970b752 100644
--- a/what-to-do.md
+++ b/what-to-do.md
@@ -159,7 +159,9 @@ Let's talk about _other software's privacy_...
 
 - ~~Report a bug on mozilla's tracker, telling them not to use Cloudflare/TRR.~~ There was a bug report on bugzilla. Many people were posted their concern, however the bug was hidden by the admin last year.
 
-- To disable DOH, enter about:config?filter=network.trr in the address bar then set "network.trr.mode" to 5 to completely disable it. The value "5" [means "Off by choice"](https://gist.github.com/bagder/5e29101079e9ac78920ba2fc718aceec).
+- To disable DOH, enter *about:config?filter=network.trr* in the address bar then set "*network.trr.mode*" to 5 to completely disable it. The value "5" [means "Off by choice"](https://gist.github.com/bagder/5e29101079e9ac78920ba2fc718aceec).
+
+![](image/firefoxdns.jpg)
 
 - If you really need to use non-ISP DNS, consider using [OpenNIC Tier2 DNS service](https://wiki.opennic.org/start).