--- a/toolkit/components/tooltiptext/tests/browser_input_file_tooltips.js
+++ b/toolkit/components/tooltiptext/tests/browser_input_file_tooltips.js
@@ -92,23 +92,23 @@ function* do_test(test) {
     let tooltip = document.getElementById(tooltipId);
     tooltip.addEventListener("popupshown", function onpopupshown(event) {
       tooltip.removeEventListener("popupshown", onpopupshown);
       resolve(event.target);
     });
   });
   info("Initial mouse move");
   yield new Promise(resolve => {
-    EventUtils.synthesizeNativeMouseMove(tab.linkedBrowser, 100, 5, resolve);
+    EventUtils.synthesizeNativeMouseMove(tab.linkedBrowser, 50, 5, resolve);
   });
   info("Waiting");
-  yield new Promise(resolve => setTimeout(resolve, 100));
+  yield new Promise(resolve => setTimeout(resolve, 200));
   info("Second mouse move");
   yield new Promise(resolve => {
-    EventUtils.synthesizeNativeMouseMove(tab.linkedBrowser, 110, 15, resolve);
+    EventUtils.synthesizeNativeMouseMove(tab.linkedBrowser, 70, 5, resolve);
   });
   info("Waiting for tooltip to open");
   let tooltip = yield awaitTooltipOpen;
 
   is(tooltip.getAttribute("label"), test.result, "tooltip label should match expectation");
 
   info("Closing tab");
   yield BrowserTestUtils.removeTab(tab);