# Patchy/blocky glitches in browser window that go away with cursor movement
**URL:** https://boards.straightdope.com/t/patchy-blocky-glitches-in-browser-window-that-go-away-with-cursor-movement/722116
**Category:** Factual Questions
**Created:** [June 10, 2015, 12:26am UTC](https://boards.straightdope.com/t/patchy-blocky-glitches-in-browser-window-that-go-away-with-cursor-movement/722116 "2015-06-10T00:26:58Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@wonky](https://boards.straightdope.com/u/wonky)
#### Post date: [June 10, 2015, 12:26am UTC](https://boards.straightdope.com/t/patchy-blocky-glitches-in-browser-window-that-go-away-with-cursor-movement/722116/1 "2015-06-10T00:26:58Z")
Using Firefox 38.0.5. I’ve had this problem for a long time.
Mostly it shows up in the address bar or search box. The white display will show pixelation or glitches or blotches or something. If you roll over them with the cursor, they go away.
[Examples](http://www.juliecarter.net/blog/wp-content/uploads/2015/06/screen.png).
I don’t remember ever seeing this in another context on the computer, but I can’t swear it. I use Chrome, too, and don’t remember seeing it there.
Thoughts?
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### Author:  [@Reply](https://boards.straightdope.com/u/Reply)
#### Post date: [June 10, 2015, 12:35am UTC](https://boards.straightdope.com/t/patchy-blocky-glitches-in-browser-window-that-go-away-with-cursor-movement/722116/2 "2015-06-10T00:35:05Z")
Maybe turn off hardware acceleration? [Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems | Firefox Help](https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems#w_turn-off-hardware-acceleration)
It seems like the kind of artifact that happens when the GPU is rendering something and getting glitchy, maybe due to it overheating a bit or whatever.
The impact on your browsing experience should be minimal.
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### Author:  [@wonky](https://boards.straightdope.com/u/wonky)
#### Post date: [June 10, 2015, 12:42am UTC](https://boards.straightdope.com/t/patchy-blocky-glitches-in-browser-window-that-go-away-with-cursor-movement/722116/3 "2015-06-10T00:42:22Z")
Thank you! That seems to have helped or fixed it. It amazes me how annoying I find that sort of glitch.
Thank you again!
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### Author:  [@Reply](https://boards.straightdope.com/u/Reply)
#### Post date: [June 10, 2015, 12:43am UTC](https://boards.straightdope.com/t/patchy-blocky-glitches-in-browser-window-that-go-away-with-cursor-movement/722116/4 "2015-06-10T00:43:16Z")
> [@jsgoddess](#):
>
> Thank you! That seems to have helped or fixed it. It amazes me how annoying I find that sort of glitch.
>
> Thank you again!
I hope it does! It’s sporadic, so I guess you won’t know until a few days later.
By the way, thanks for posting such an excellent screenshot. Very clear 🙂