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Autocomplete Everywhere
Set autocomplete to on for all forms.
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For a more efficient and faster executing autocomplete on script, have a look here: http://userscripts.org/scripts/show/7347
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Unfortunately it doesn't work on a login page I need to use for my internet banking, which uses javascript for the whole page.
To give you an idea of it, take a look:
https://atbconnect.atbank.nl/ATBIBSR/
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Excellent script - worked perfectly with a company internal site that wouldn't allow autocomplete on the logon form. Thanks!