I do not need to know that lots of people have the same problem, I want a fix.

I agree completely. I need the previous, functional version back. This one is being offered prematurely. HTML5 is not an adopted standard according to the W3C. It's lack of functionality at the most basic level-loading web pages-is why it should not be implemented at this time.

Download the free version of Malwarebytes from http://www.malwarebytes.org/products/malwarebytes_free and run a full system scan to eliminate malware as the culprit as it often is.

To revert to the previous secure version of Firefox, do the following.

Go to Download Firefox v3.6.17 and download it to the desktop.

Then go to Add/Remove Programs, scroll down to "Mozilla Firefox" and remove it, choosing to keep your bookmarks, customizations etc., (don't checkmark the box).

Then reboot and delete the folder called "Mozilla Firefox" at this location: C:\Program Files\Mozilla Firefox

Finally run the installation file you downloaded to the desktop earlier.

Your bookmarks, customizations etc., are maintained in a different location and will become available to you again once you complete the installation.

After you complete the installation, go to the Plugins Check page and update those where necessary.