You might try redownloading the extension to make sure the problem is not caused by a corrupt extension package. Out of curiosity, what browser did you use to download the extension? I assume you've tried "Run as administrator?"
Thanks for your response and suggestions.
Yes, I did "run as administrator."
I did try downloading the extension again, both in Firefox (the one used before) and IE 8.
The Firefox download had the same behavior, but the IE one worked. Very, very weird.
Anyway, it is installed now and all seems good.
Yeah, I've heard of one other case where an extension manager installer downloaded with Firefox failed to run. I've not been able to nail down the cause of the problem. Would you please provide me more info about the Firefox build you were using.What version of Firefox are you running? Do you have any Firefox extensions installed and, if so, what ones? Any other information about your Firefox installation would also be helpful. Thanks.
I don't think there's anything really unusual about my installation. Maybe a few extra add-ins, but nothing really weird as far as I know. I keep it all updated. I also use Avast Antivirus and Spybot Search and Destroy, both of which are up-to-date.
My Firefox is version 3.6.10, running on 64-bit Windows 7.
"Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:188.8.131.52) Gecko/20100914 Firefox/3.6.10"
Flash and Video Download 0.1
Java Console 6.0.20
Java Console 6.0.21
Web Developer 1.1.8
Wacom Dynamic Link Library 184.108.40.206
Adobe Acrobat 220.127.116.11
DivX Player Netscape Plugin 18.104.22.168
DivX Web Player 22.214.171.124
Google Talk Plugin 126.96.36.199
Google Talk Plugin Video Accelerator 0.1.43.3
iTunes Application Detector 188.8.131.52
Java Deployment Toolkit 184.108.40.206
Java(TM) Platform SE 6 U21 220.127.116.11
Microsoft Office 2010 14.0.4730.1010
Microsoft Windows Media Player Firefox Plugin 18.104.22.168
Mozilla Default Plug-in 22.214.171.124
QuickTime Plug-in 126.96.36.199
Shockwave Flash 10.1.82.76
Silverlight Plug-In 4.0.50917.0
Windows Genuine Advantage 188.8.131.52
Thanks for the feedback. I'll update this thread if I'm able to reproduce the failure. Cheers.