Bug 1221141 - Specify absolute path to each about:debugging test file to please Windows. r=me for bustage fix on CLOSED TREE

devtools/client/aboutdebugging/test/browser.ini

@@ -3,6 +3,7 @@ tags = devtools
 subsuite = devtools
 support-files =
   head.js
-  addons/
+  addons/unpacked/bootstrap.js
+  addons/unpacked/install.rdf
 
 [browser_addons_install.js]