diff --git a/mobile/xul/chrome/tests/browser_sessionstore.js b/mobile/xul/chrome/tests/browser_sessionstore.js
index 20d0bc8560a..eefac5b2b3e 100644
--- a/mobile/xul/chrome/tests/browser_sessionstore.js
+++ b/mobile/xul/chrome/tests/browser_sessionstore.js
@@ -11,6 +11,7 @@ function test() {
   // The "runNextTest" approach is async, so we need to call "waitForExplicitFinish()"
   // We call "finish()" when the tests are finished
   waitForExplicitFinish();
+  ignoreAllUncaughtExceptions();
 
   ss = Cc["@mozilla.org/browser/sessionstore;1"].getService(Ci.nsISessionStore);