User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.4b) Gecko/20030507 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.4b) Gecko/20030507 According to the specs (html 4.01, 17.12.2): When set for a form control, this boolean attribute prohibits changes to the control. ... The following elements support the readonly attribute: INPUT and TEXTAREA. Reproducible: Always Steps to Reproduce: 1. Load checkbox.html 2. Click on the checkboxes. Actual Results: Only disabled checkbox cannot be changed. Expected Results: Readonly checkboxes should not be modifiable. Workaround: make the checkbox disabled. But it still violates the specs.
*** This bug has been marked as a duplicate of 88512 ***