User-Agent: Mozilla/5.0 (X11; U; Linux i686; fr-FR; rv:1.7.2) Gecko/20040804 Build Identifier: Mozilla/5.0 (X11; U; Linux i686; fr-FR; rv:1.7.2) Gecko/20040804 This bug assume that the "spellcheck as you type" option is active and a dictionary is installed. Reproducible: Always Steps to Reproduce: 1. put a <textbox> in a XUL file with the attributes multiline="true" AND spellcheck="false" 2. open the XUL file, and type in the textbox a misformed text 3. look that spellcheck is active e Actual Results: Even the spellcheck="false" attribute has been put on the <textbox>, the spellcheck is still enable. Expected Results: The spellcheck="false" attribute must work on a <textbox> like on a <textarea> html tag. The 'spellchek' attribute has no effet on a xul textbox. The xul attribute should inherit from texteara spellcheck attribute. The multiline textbox is bind with a html textarea in an XBL, perhaps this latter could inherit the spellcheck attribute from the textbox ? (ref: http://lxr.mozilla.org/mozilla1.8.0/source/toolkit/content/widgets/textbox.xml#167) For instance : xbl:inherits="onfocus,onblur,xbl:text=value,disabled,tabindex,rows,cols,readonly,wrap,*spellcheck*"