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OS X - Operating System General OS operation information and support

weird lines on 2 computers


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jrmphilly

 
Member Since: May 27, 2014
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On my 09 Imac and my new Macbook pro I have constant horizontal lines that run down the screen when opening web pages on Firefox. Does anyone know what may cause this.
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chscag

 
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That's certainly strange. Since it's happening on both machines and only with Firefox, have you tried removing Firefox, download it again, and re-installing it?
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Also does it do it with Safari? Google Chrome?
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jrmphilly

 
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These lines don't seem to be effecting how the pages work but they are little annoying. I haven't tried removing and reinstalling Firefox and haven't used Safari or Chrome.
Jeff
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cradom

 
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I get the same thing when I quit Firefox. A single horizontal line of numbers and letters, too fast to read, in the window.
I just marked it up to a glitch in the latest version.

Craig Domingue - resident redneck.
“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin
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Does it scroll from top to bottom and repeat or is it just one line that runs down and disappears?

Lisa
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When I quit, I get a blank white window with 1 line of text/numbers about the top of the page for just a flash, and it's gone.

Craig Domingue - resident redneck.
“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin
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chscag

 
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I don't know what's going on with Mozilla lately, but I have just about given up on all their software. I have to continue using Thunderbird because of its newsreader capability and some NNTP sites that I go to, otherwise I would remove it too.

To the OP: I suggest start using Safari or even Chrome. Safari is stable, and Apple continues to update it for security. Chrome is a bit faster than Safari but also somewhat finicky and it's still only 32 bit.
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I have given up on Mozilla and back to Safari using Adblock and Ghostery.

Hang on to those original install discs like grim death! Using OS X.7 or later make a bootable USB thumb drive before running Installer!
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