FF 4.01 does not handle Text Box correctly and some pages need reloading before showing correctly

Question

FF 4.01 does two things incorrectly when displaying some sites which are not replicated on Google Chrome:
# 1: Some pages do not load correctly first time and the images and text are spread out vertically one by one.
# 2: Where websites use inserted TEXTBOXES or ONLINE FORMS these do not function and come up with error messages like as given below. These do not reset correctly if the page is reloaded.
FreeTextBox has not been correctly installed. To install FreeTextBox either:
(1) add a reference to FtbWebResource.axd in web.config:
<system.web>
<httpHandlers>
<add verb="GET"
path="FtbWebResource.axd"
type="FreeTextBoxControls.AssemblyResourceHandler, FreeTextBox" />
</httpHandlers>
</system.web>
(2) Save the FreeTextBox image and javascript files to a location on your website and set up FreeTextBox as follows
<FTB:FreeTextBox id="FreeTextBox1" SupportFolder="ftbfileslocation" JavaScriptLocation="ExternalFile" ButtonImagesLocation="ExternalFile" ToolbarImagesLocation="ExternalFile" ButtonImagesLocation="ExternalFile" runat="server" />

Answer 1

Your above posted system details show outdated plugin(s) with known security and stability risks.
*Shockwave Flash 9.0 r999
Update the [[Managing the Flash plugin|Flash]] plugin to the latest version.
*http://www.adobe.com/software/flash/about/
In Firefox 3.6 and later versions you need the Next-Generation Java™ Plug-In present in Java 6 U10 and later (Linux: libnpjp2.so; Windows: npjp2.dll).
http://java.com/en/download/faq/firefox_newplugin.xml
See also http://java.sun.com/javase/6/webnotes/install/jre/manual-plugin-install-linux.html