FF Flashing when scrolling.

[Roderunner]

Ho Folks,
I first noticed FF flashing when version 7.0 was released, it's still the same in version 7.0.1. Only page I found so far is The Beginner’s Guide to Using QoS (Quality of Service) on Your Router - How-To Geek It is ok using IE9.
Is it happening in your browser ?

 

[Roderunner]

Update, I returned to my link above after posting. I intended testing it by disabling my addons in FF one at a time, BUT the page scrolled normally. Watch this please.
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Update 2, I have just found, that by right clicking a link, selecting 'Open link in a new tab' causes the error in scrolling.