FF gets Veery slow after upgrade from 3.6.28 to everything including the later version 12

Removal, reboot and reinstall 3.6.28 solves the problem. The slowness is expressed during the change of pages and/or srolling.
The computer is lightweight Vaio VPCX11S1E w / SSD 128 GB, 2 GB of RAM, Awast antivirus and firewall Zone Alarm.
No private plugins have been nsntalled

Try to start Firefox in safe mode. This mode disables all extensions, customizations, hardware acceleration, etc., temporarily for the diagnosis and troubleshooting. If Firefox works fine in Safe Mode, then it is probably a problem with the add-on. Restart Firefox in normal mode, and then type "subject: addons" (without the quotes) in the address bar. Disable your extensions, restart Firefox between each one, until you find the troublemaker. Once you do, you can turn off this add-on and report the problem to the developer of this - on Add.

A few other basic problems you can try things is the following:
Run all Windows updates, install all required service packs, etc.

Updating your graphics driver (Firefox uses the graphics card for rendering and an outdated graphics card driver can cause problems. https://support.mozilla.org/en-US/kb/how-do-i-upgrade-my-graphics-drivers.

Update all of your plugins (Flash, Java, etc.): http://www.mozilla.org/plugincheck/.

Download and install MalwareBytes Anti-Malware, run a full scan. http://www.malwarebytes.org/. This check allows that there is no virus on your computer, causing problems. You can uninstall this program after having cleaned the infections.

Tags: Firefox

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