To prevent Firefox from using its Autocomplete feature on input fields, it is recommend that you use autocomplete='off' as an attribute within the input tag.
However, wicket reads this and changes it to autocomplete = 'false'
Hence a tag which initially reads
<input wicket:id="footag" autocomplete="off" />
, gets rendered by wicket as
<input id="fooTag3" name="fooTag" value="" autocomplete="false" wicket:id="footag"/>
This then does not work with firefox or internet explorer. Autocomplete is not an html standard, however wicket should not be changing the html attributes.