Start Firefox in Safe Mode {web link} While you are in safe mode;

Type about:preferences<Enter> in the address bar

Select Advanced > General. Look for and turn off Use Hardware Acceleration.

Poke around safe web sites. Are there any problems?

Then restart.

This solved my problem but only works in safe mode. What I Should do?

Hello,

If the issue is not present in Firefox Safe Mode, your problem is probably caused by an extension, and you need to figure out which one. Please follow the Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems article to find the cause.

When you figure out what's causing your issues, please let us know. It might help others with the same problem.

In safe mode works good. I turn everything off (addons and plugins) and restart but still happens...

Safe mode disables all add-ons and user settings. If it still happens with all add-on disabled, then it may be a setting under about:config

Type about:support in the address bar and press Enter. Under the main banner, press the button; Copy Text To Clipboard.. Then in the reply box at the bottom of this page, do a right click in the box and select Paste. This will show us your system details. No Personal Information Is Collected.

For now it seems is gone. And disappeared after I unistalled Java script and reinstaled it. Hope it helps someone too.

Thanks.

If there are any more problems, you know where to come.

Good luck.