Upper right corner radio buttons disappear

Whenever I update Firefox since version 32, radio buttons right up to "minimize, resize the window and close", disappear. They will appear momentarily, and then they are gone. If I downgrade to the version 32, I get back them, so I kept version 32 just for this reason. I wonder why they are endangered in version 33!

Thank you

You use a theme installed, or the default value?

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

Type of topic: preferences< enter > in the address bar

Select Advanced > General.
Find and stop using hardware acceleration.

Search web sites secure. Are there problems?

Then restart.

Tags: Firefox

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