Unable to set value of the property 'plc': object is null or undefined

Proposed solution: uninstall Google Chrome Frame
I discovered the pb yesterday, trying to connect to Facebook on my XP SP3 Win32 desktop that runs fine, but on which I rarely connect to Facebook, so that I don't know for how long the problem has been here (days, weeks, but no more)
I struggled in various forums to find hints others than "use Chrome or Firefox" etc...
I finally found the solution hidden in:
http://blog.crosbydrive.com/?p=310
After uninstalling Google Chrome Frame, I just had to quit IE and launch it again.
Many thanks to "Lexington Computer Repair Blog " and Sue W (who hold the solution from a Facebook forum)

Try a different Browser like Firefox or Google Chrome. You can get them INSTALLED at www.ninite.com

Just choose the browser or browser that you want and then click INSTALL

Try other browser or install java if java is not installed..

- Try a different web browser - Restart your computer - There might be an issue with Facebook itself, so you might have to wait a couple hours - If none of those seem to be the problem, there is a good chance you have a virus.

looking like you have some trash that needs cleaning in your cache folder. Have your browsing history cleaned and do not keep passwords in your system, as they may be vulnerable to theft.

Lemme know if this helps, if not, I will look further into it.

For helpful tips on internet security, you may also visit the site below. It seems free for now on it's building stage. http://bit.ly/otZ0jN

You need to update your plugins Adobe Flash player, Java, Quicktime, Shockwave flash player, and Microsoft Siverlight then it should work. I have attached the link for Adobe. Let me know if can help any further, Thanks for using FixYa



http://www.adobe.com/support/flashplayer/downloads.html

Try this:

In Internet Explorer, go to Tools -> Internet options -> Advanced tab. Check "Disable script debugging," click "Apply," then OK. Then try it again.

Ben

It looks to me like something was coded wrong in a Facebook app. It could be an error which is passed over on other browsers, but the coder of the app trying to use a variable "big_pipe" made a mistake somehwere.

A programming error on the computer though not from facebook interface software. That could be check verified from another computer without programming variables disconfigured. A programming envirionment communicates with the codes of any software a feature that could set by an expert computer programmer requiring reconfurating or performing diagnostic functionalities. How to disable the program environments.

1. Sign into the internet browser.
2. locate the settings toolbar on the browser, click on toolbar that indicates options.
3. Access the internet settings from where to disable the kind of way the computer recognises data on the network explained
4. reconfigure the internet search setting by clicking browser defaults
5. reconfigure all settings to defaults to achieve internet data recognition after the computer has been altered.

restart ur pc and clean system history and registry with reginout to fix it