I’ve learnt two things today.

First of all, it’s possible to crash IE 6 via a single line of code…

<style>*{position:relative}</style><table><input></table>

It doesn’t crash Firefox, Opera, etc. For whatever reason, it causes a fatal error in mshtml.dll.

The second thing I’ve learnt today, thanks to a throw-away line in a magazine, is that you can email a Wii console.

The Email address is wxxx@wii.com, where xxx is their friend code. For example, w123456789012@wii.com (no, that’s not mine).

Nice.

When Microsoft Update thinks I’m using a Mac. Yes, last night I went to get some updates from Microsoft Update and I got the message…

Thank you for your interest in obtaining updates from our site.

This website is designed to work with Microsoft Windows operating systems only.
To find updates for Microsoft products that are designed for Macintosh operating
systems, please visit http://www.microsoft.com/mac/.

Nice. I was using Internet Explorer 7 on Windows XP MCE SP3.

It knows which system I’m using from the “user agent” but one of many websites which displays your current user agent information, showed that I was happily using Windows. Weird.

Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1) ; .NET CLR 1.0.3705; .NET CLR 2.0.50727; .NET CLR 1.1.4322; Media Center PC 4.0; .NET CLR 3.0.04506.30; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; WTClient2)

Weirder still was that if I used IE Tab in Firefox, the page would appear without a problem. As IE Tab simply uses Internet Explorer but in Firefox, it shouldn’t have been any different. Again, I checked the user agent and that was the same as running it under IE normally.

Double weird.

Anyway, after a reboot even IE Tab stopped working.

Googling the issue found that most people seemed to have Spyware or Virus’. In panic, I did a check but found nothing. However, I also came across a Microsoft blog on how to reset all of IE 7′s settings – I tried that and Microsoft Update is now working again.

Before, I talked about installing the beta of Internet Explorer 8 for website test purposes. Unfortunately, and I covered this also, it doesn’t sit with existing IE installations, unlike Firefox which you simply install into a seperate folder.

Now, and this comes from experience, all may not go well when two Firefox installations try to share a profile – particularly if one of those Firefox installations may break add-ons. So, having installed IE8 I thought it was only right to also try out the current beta of Firefox 3.

So, my workaround for this is to ensure you have seperate profiles and that each version of Firefox definitely uses the one it should do. Here’s what I did…

• Find your existing Firefox installation folder – usually C:\Program Files\Mozilla Firefox – and open up a command window
• Run firefox.exe -ProfileManager – the profile window will appear
• Ensure your current profile is named something appropriate. I changed it from default to David
• I then created a new profile named Test and closed the profile window down.
• Now change your current Firefox shortcut so that it specifically launches your original profile. In my case, this was "C:\Program Files\Mozilla Firefox\firefox.exe" -P "David"
• I now downloaded the Beta 4 of Firefox 3.
• Run the downloaded program and select Custom installation – ensure it installs into a different folder than your current Firefox application. In this case it defaulted to C:\Program Files\Mozilla Firefox 3 Beta 4
• Once installed, de-select the option to launch the new Firefox installation.
• Find the new shortcut and change this to point to your newly created second profile. In my case this was, "C:\Program Files\Mozilla Firefox 3 Beta 4\firefox.exe" -P "Test"

And that’s it. Each version of Firefox will launch with it’s own profile and you can tinker about with your Beta installation all you like without affecting your normal browser profile.