diff --git a/mod/assign/tests/behat/reopen_locked_submission.feature b/mod/assign/tests/behat/reopen_locked_submission.feature
index 1d36aaecf5e..fbe497d8f7f 100644
--- a/mod/assign/tests/behat/reopen_locked_submission.feature
+++ b/mod/assign/tests/behat/reopen_locked_submission.feature
@@ -17,7 +17,7 @@ Feature: Submissions are unlocked when a new attempt is given
       | teacher1 | C1 | editingteacher |
       | student1 | C1 | student |
 
-  @javascript
+  @javascript @skip_chrome_zerosize
   Scenario: A locked submission should unlock when a new attempt is automatically given.
     Given the following "activity" exists:
       | activity                             | assign                |
@@ -45,7 +45,7 @@ Feature: Submissions are unlocked when a new attempt is given
     Then I should see "Reopened"
     And I should not see "Submission changes not allowed"
 
-  @javascript
+  @javascript @skip_chrome_zerosize
   Scenario: A locked submission should unlock when a new attempt is manually given.
     Given the following "activity" exists:
       | activity                            | assign                  |
diff --git a/tag/tests/behat/collections.feature b/tag/tests/behat/collections.feature
index 50bdd8bf9cb..5a9449a5cfc 100644
--- a/tag/tests/behat/collections.feature
+++ b/tag/tests/behat/collections.feature
@@ -96,6 +96,7 @@ Feature: Managers can create and manage tag collections
     And I should see "Tag1"
     And I should see "Tag2"
 
+  @skip_chrome_zerosize
   Scenario: Creating searchable and non-searchable tag collections
     And I follow "Add tag collection"
     And I set the following fields to these values: