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Go Back and Forth Fast in Preview

If you're reading a PDF in Apple's Preview software, and you follow a bookmark or an internal link to move around within the PDF, you can quickly return to where you were by pressing the keyboard shortcut Command-[ (that's Command-Left Bracket). Or, you can choose Go > Back.

The command works iteratively, so you can go back to just the previously viewed page or if you issue the command again, to the page before that, and so on. There's also an equivalent Go > Forward (Command-]).

 

 

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Firefox 1.0.1 Security Update Released

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Firefox 1.0.1 Security Update Released -- The Mozilla Organization last week released Firefox 1.0.1 for all platforms, which fixes a number of small security holes or potential problems, notably the homograph spoofing problem we've talked about recently in TidBITS (see "Don't Trust Your Eyes or URLs" in TidBITS-766). The updated version includes a new preference, network.IDN_show_punycode, which is set to true. (To access this preference, enter "about:config" in the Location field and press Return; it's probably easiest to then type "IDN" in the Filter field to display the preference.)

<http://www.mozilla.org/products/firefox/ all.html>
<http://www.mozilla.org/projects/security/known- vulnerabilities.html>
<http://db.tidbits.com/article/07983>

Instead of seeing the actual display of international characters in domain names, you'll see the punycode or Unicode-to-Roman mapping when you visit a site that is attempting to pass itself off as another site using this technique. The Shmoo Group, which exposed this visual vulnerability, have a demonstration on their site. The second o in shmoo in the links at the top of that page is a homograph, or a letter that looks like another letter. Before Firefox 1.0.1, the links and the destination of the fake domains at the top of that page would read "http://www.theshmoogroup.com/". Now they appear as "http://www.xn--theshmogroup-bgk.com/".

<http://www.shmoo.com/idn/>

The English version of Firefox 1.0.1 for Mac OS X is an 8.7 MB download; note that not all language versions have been updated yet.

 

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