We have all wondered how the designers take those screen shots of web pages and post them on their sites to show a usability issue. Now, we know.
The ScreenGrab Firefox extension takes a snapshot of a web page and makes an image out of it. Simple and it does the job.
I am, however, wondering why the extension needs Java to run. Personally, its been a long time since I've used Java on my machine (Yes, I've used it a little), but lately I haven't seen my little coffee cup show up in the system tray at all.
There is another extension I will be reviewing next week that doesn't use a JVM at all to take screen shots of web pages.
If you already have the JVM or are a Java Developer, then this extension shouldn't be a problem for you. One drawback to the extension is that you will not be able to capture obscenely large HTML pages. Some tweaking in the JVM is necessary to perform the operation successfully...or maybe another gig stick for your machine to help. ;-)
Apart from needing a JVM to make this extension run properly, I think the extension is worth a look for a designers portfolio for interviews.