diff --git a/docs/topics/_images/firebug1.png b/docs/topics/_images/firebug1.png deleted file mode 100644 index e2eaefa83..000000000 Binary files a/docs/topics/_images/firebug1.png and /dev/null differ diff --git a/docs/topics/_images/firebug2.png b/docs/topics/_images/firebug2.png deleted file mode 100644 index 4cab63431..000000000 Binary files a/docs/topics/_images/firebug2.png and /dev/null differ diff --git a/docs/topics/_images/firebug3.png b/docs/topics/_images/firebug3.png deleted file mode 100644 index affbe14bc..000000000 Binary files a/docs/topics/_images/firebug3.png and /dev/null differ