diff -r 000000000000 -r 6474c204b198 browser/themes/shared/devtools/images/tool-debugger.svg
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/themes/shared/devtools/images/tool-debugger.svg	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,7 @@
+<svg width="16" height="16" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16" xmlns:xlink="http://www.w3.org/1999/xlink" enable-background="new 0 0 16 16">
+<g fill="#edf0f1" fill-rule="evenodd">
+<path d="m8,1c-3.9,0-7,3.1-7,7 0,3.9 3.1,7 7,7 3.9,0 7-3.1 7-7 0-3.9-3.1-7-7-7zm0,12c-2.8,0-5-2.2-5-5 0-2.8 2.2-5 5-5 2.8,0 5,2.2 5,5 0,2.8-2.2,5-5,5z"/>
+<path d="m6,5c.6,0 1,.4 1,1v4c0,.6-.4,1-1,1-.6,0-1-.4-1-1v-4c0-.6 .4-1 1-1z"/>
+<path d="m10,5c.6,0 1,.4 1,1v4c0,.6-.4,1-1,1-.6,0-1-.4-1-1v-4c0-.6 .4-1 1-1z"/>
+</g>
+</svg>