How to fix error message; Mozilla Firefox unresponsive, script is not working - continue or cancel?

Question

While playing games especially in Facebook with the Farms and very little on other games. The message pops up like not in script not in sync (with FB-Zynga) and it pauses everything until click an options. I use continue and it takes a few seconds to like reset itself (the letterhead will flash and then toolbar re-shows).
This can happen one time or two to three times depending on how long it takes response time from ?? Firefox or Facebook. It occurs numerous times throughout the games (not on main page/profile etc.).
All system performances have been updated and cleaned each day. This still occurs even after on 11-23-11 updating FF to 8.1 from 5 and up, updating Flash Player, updating our Cleaner, and at highest we can for Internet Exployer.
This did not happen when using Google Chrome except it would give message to close. I can open more than one program or website at a time, but it strongly happens while playing games (#1 being Facebook). It does not interfear with AOL, MindJolt, Pogo Games etc., nor while searching other websites from any used program. What can be done? Is the your speed synchronizing with FB or our computer??

Answer 1

Do a clean reinstall and download a fresh Firefox copy from http://www.mozilla.com/firefox/all.html and save the file to the desktop.<br />
Uninstall your current Firefox version and remove the Firefox program folder before installing that copy of the Firefox installer.<br />
Don't remove personal data when uninstalling.<br />
It is important to delete the Firefox program folder to remove all the files and make sure that there are no problems with files that were leftover after uninstalling.<br />
<br />
You can skip the step to create a new profile, that is not necessary for this issue.
See http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Clean_reinstall
You may have a malware problem if you get unrelated pop-ups opening or are redirected to unrequested websites.
If that is the case then do a malware check with a few different programs.
Every program finds different malware, so you need to use more than one program to scan.
Do a malware check with a few malware scan programs.<br />
You need to use all programs because each detects different malware.<br />
Make sure that you update each program to get the latest version of the database before doing a scan.
* http://www.malwarebytes.org/mbam.php - Malwarebytes' Anti-Malware
* http://www.superantispyware.com/ - SuperAntispyware
* http://www.safer-networking.org/en/index.html - Spybot Search & Destroy
* http://www.lavasoft.com/products/ad_aware_free.php - Ad-Aware Free
* http://www.microsoft.com/windows/products/winfamily/defender/default.mspx - Windows Defender: Home Page
See also "Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked and [[Searches are redirected to another site]]