Bug 1348583 - Intermittent browser/components/sessionstore/test/browser_625016.js. temporarily disable on linux/debug. r=gbrown

MozReview-Commit-ID: 3gWsdhJ167A

browser/components/sessionstore/test/browser.ini

@@ -223,7 +223,7 @@ skip-if = true
 
 # Disabled on OS X:
 [browser_625016.js]
-skip-if = os == "mac"
+skip-if = os == "mac" || (os == "linux" && debug) # linux, Bug 1348583
 
 [browser_906076_lazy_tabs.js]
 [browser_911547.js]