updated 1/24/2011 4:14:36 PM ET 2011-01-24T21:14:36

The Firefox and Google Chrome browsers are getting tools to help users block advertisers from collecting information about them.

Alex Fowler, a technology and privacy officer for Firefox maker Mozilla, says the "Do Not Track" tool will be the first in a series of steps designed to guard privacy. He doesn't say when the tool will be available.

Google Chrome users can now download a browser plug-in that blocks advertisers — but only from ad networks that already let people decline, or opt out of, personalized, targeted ads.

The next version of Microsoft Corp.'s Internet Explorer browser, which is still being developed, will include a similar feature, though people will have to create or find their own lists of sites they want to block.

Copyright 2011 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

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