Test Try on all supported browsers Open a page where Atto is used for a required field Click in Atto, and click out. Make sure you cannot submit the field is considered "empty" Add some text, and submit Make sure this time you could Regression testing Stolen from MDL-44063 In ie9, ie11, firefox, chrome, safari, ios safari, android stock Open atto on a page with no text already entered in the editor (exmaple: new blog entry) focus on the editor and type some text Hit enter - the content should be split into 2 paragraphs (with some margin between them) convert the 2 paragraphs to a list hit enter twice on the second list item to break out of the list the content after the list should be in a paragraph hit enter again and the paragraph after the lsit should be split into 2 paragraphs Testing notes: To see the if the content is in a paragraph, right click and inspect it (do not rely on html view because there is a little magic there). In firefox it is possible to use the arrow keys or by tabbing to a text field - to position the cursor outside of the first paragraph, typing then insert text directly into the div. This is a firefox bug and we should not work around it IMO. Please also note the existing issue: MDL-44812