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"Black boxes" over content in Safari since Sierra installed (intermittent freezes, also)

Hello,

I am seeing large "black boxes" that obscure content in Safari since installing Sierra. Sometimes refreshing the page will clear the boxes, but not always.

I am an experienced Mac user (all the way back to System 7) and I have never experienced this kind of behavior before.

I am also experiencing intermittent freezes on my MacBook Air (requiring a reboot) that are much more frequent since the Sierra was installed.

Anyone else having similar symptoms?

Posted on Oct 8, 2016 11:03 AM

22 replies

Afri61

Level 1

4 points

Oct 12, 2016 1:25 PM in response to Old Toad

Really ***. I got those annoying black boxes even with Guest account. Kinda desperate... :/

Old Toad

Level 10

207,649 points

Oct 12, 2016 3:20 PM in response to Afri61

The fact that it doesn't occur in Safe Mode means it's either a 3rd party extension/file or a non critical system file that is not launched in Safe Mode.

Boot into the Recovery volume (boot with the Command + R keys held down) and reinstall the system.

Afri61

Level 1

4 points

Oct 13, 2016 2:19 AM in response to Old Toad

Gonna do it, thanks for the time.

fservida

Level 1

9 points

Oct 20, 2016 11:11 AM in response to Lawrence Sweet

Happening to me too,

already reinstalled Sierra and it happened even on the fresh system, so it seems more like an internal safari component that is not loaded at safe boot but is on normal boot...

Afri61

Level 1

4 points

Oct 20, 2016 12:25 PM in response to fservida

Mind posting a screenshot?

Dec 13, 2016 9:53 AM in response to Afri61

I'm still having the same problem--only it's white boxes, and they only occur when I'm running both Safari and Microsoft Word for Mac 2008. Any further thoughts or suggestions?

Dec 13, 2016 10:14 AM in response to Lawrence Sweet

I might've missed a similar reply, but this looks like Adware, especially if it's Safari-specific. I would take Old Toad's advice and reinstall Sierra.

"Black boxes" over content in Safari since Sierra installed (intermittent freezes, also)