--- a/devtools/client/inspector/rules/test/browser_rules_add-rule_iframes.js
+++ b/devtools/client/inspector/rules/test/browser_rules_add-rule_iframes.js
@@ -29,24 +29,16 @@ add_task(function* () {
 
   let innerFrameDiv2 = yield getNodeFrontInFrame("div", "#frame2", inspector);
   yield selectNode(innerFrameDiv2, inspector);
   yield addNewRule(inspector, view);
   yield testNewRule(view, "div", 1);
   yield addNewProperty(view, 1, "color", "green");
 });
 
-function* addNewRule(inspector, view) {
-  info("Adding the new rule using the button");
-  view.addRuleButton.click();
-  info("Waiting for rule view to change");
-  let onRuleViewChanged = once(view, "ruleview-changed");
-  yield onRuleViewChanged;
-}
-
 /**
  * Check the newly created rule has the expected selector and submit the
  * selector editor.
  */
 function* testNewRule(view, expected, index) {
   let idRuleEditor = getRuleViewRuleEditor(view, index);
   let editor = idRuleEditor.selectorText.ownerDocument.activeElement;
   is(editor.value, expected,

--- a/devtools/client/inspector/rules/test/browser_rules_add-rule_pseudo_class.js
+++ b/devtools/client/inspector/rules/test/browser_rules_add-rule_pseudo_class.js
@@ -31,24 +31,16 @@ add_task(function* () {
 
 function* runTestData(inspector, view, pseudoClasses) {
   yield setPseudoLocks(inspector, view, pseudoClasses);
   yield addNewRule(inspector, view);
   yield testNewRule(view, pseudoClasses, 1);
   yield resetPseudoLocks(inspector, view);
 }
 
-function* addNewRule(inspector, view) {
-  info("Adding the new rule using the button");
-  view.addRuleButton.click();
-  info("Waiting for rule view to change");
-  let onRuleViewChanged = once(view, "ruleview-changed");
-  yield onRuleViewChanged;
-}
-
 function* testNewRule(view, pseudoClasses, index) {
   let idRuleEditor = getRuleViewRuleEditor(view, index);
   let editor = idRuleEditor.selectorText.ownerDocument.activeElement;
   let expected = EXPECTED_SELECTOR + pseudoClasses.join("");
 
   is(editor.value, expected,
       "Selector editor value is as expected: " + expected);