Firefox

CNET brings up some good issues about Greasemonkey, the Firefox extension that lets users modify the look of a web page.

That's one cautionary note making the rounds along with a popular new extension for Firefox that lets people customize Web pages they visit without the knowledge or cooperation of Web publishers. The extension, dubbed Greasemonkey, lets people run what's known as a "user script," which alters a Web page as the page is downloaded.

That capability has gained the extension an avid following of Web surfers who want to customize the sites they visit, removing design glitches and stripping sites of ads. But the extension comes with substantial security risks and could stir trouble among site owners who object to individual, custom redesigns of their pages.

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Read more from this blogger: Firefox add-on lets surfers tweak sites, but is it safe? | CNET News.com