As Lifehacker noted yesterday, Mr Uptime is now (finally) available for Firefox 3. Mr Uptime for Firefox 2 proved to be highly popular, and we have received a lot of requests for an updated version for Firefox 3, so here it is!

For those of you not familiar with Mr Uptime, it’s a Firefox extension (from us here at Pingdom) that will make sure you don’t miss cool content online just because a website is temporarily down.

If you use Digg or Slashdot, you will frequently come upon websites that are temporarily down due to the massive amounts of traffic that these sites can generate (the so-called Slashdot or Digg effect). When a site is down, it’s easy to forget to revisit it later, and you will have missed something fun/interesting/cool. This is where Mr Uptime comes in.

With Mr Uptime you just press a button and it will keep an eye on that unavailable site for you and let you know when it’s back online. Essentially, Mr Uptime is a Firefox extension that will tell you when a broken website is working again.

In short, if you use social news websites, Mr Uptime can be an invaluable help.

You can learn more about its features at the Mr Uptime website.

Here are some quotes from the reviews section on the Mr Uptime page at Mozilla:

By L2G:

There are only a handful of Firefox extensions I’ve used that haven’t been upgraded to be compatible with 3.x yet, and Mr Uptime is the one I miss the most.

By Saraean:

I agree with this fellow below. I would love it to be updated to work in FF3. Pwease! *cookies*

By Anthonylitz:

Great tool, and a must have. I have missed it much in FF3, Please Update!

And now, once it’s upgraded, the first comment was this:

By Yochanan:

Hooray! Finally an update for Firefox 3!

Pingdom’s Podcast is a weekly show about Internet, web, security, and mobile stuff.

In this show, Saleh also gives us an update on the pending approval of his Carbon for Windows Phone Twitter client. We also talked about Nokia’s recent financial results, if Google Chrome can hit more than 50% market share this year, and the recent privacy-blunder by the guys behind the Path mobile app.

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There’s no denying that Google Chrome continues to be the darling of the web browser market. And as we predicted in July last year, Chrome overtook Firefox around November 2011.

So now the question is, when will Google also wrestle down Internet Explorer, and become the undisputed king of the browser world? In December 2011, Chrome 15 became the most popular browser in the world, beating Internet Explorer 8, but if you combine all IE versions, Microsoft still holds the number 1 spot.

Equipped with the latest web browser statistics from StatCounter, we set out to see when Chrome is likely to achieve more than 50% market share.

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Want to see how your favorite US sports site is doing, if it has a perfect 100% uptime score or not? If you want to check the latest scores and it isn’t working, could it be a problem with your computer or connection, or the site? We’ve got the solution for you!

For some time now we’ve been monitoring 34 major US sports and news sites related to sports. Our recent articles on the Super Bowl are a result of that monitoring.

Now you can look at how these sites are doing yourself on the public reports page for this list of US sports websites.

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Who has not used Google Maps? Raise your hand! Since the launch 7 years ago, Google Maps has become the de facto map service that users around the world go to for all their mapping needs.

As we say Happy Birthday to Google Maps, read on to find out some of the critical milestones in its history, and some amazing numbers and statistics.

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In 2010, there were just over 1 million secure Internet websites worldwide. Almost half of those, or 446,992 to be exact, were located in the United States.

But in which country can we find the most secure websites in relation to population? The answer may surprise you.

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