Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

haralds

macrumors 68030
Original poster
Jan 3, 2014
2,828
1,154
Silicon Valley, CA
Has anybody else seen this? I see it on my PowerBook M1 and Mac Studio M1 Ultra.

Safari might be running fine for hours, then stops loading new pages or updating any window. Quitting and relaunching the app does not change anything. A new tab stays blank and does not load the Start page.

The only thing that fixes it is quitting Safari, opening Activity Monitor and killing all ""Safari Webcontent (cached pages.)

I have seen this on multiple systems running Monterey. I have disabled Extensions but it is independent of that.

Has anybody else seen this?

Some WebKit content in Mail also appears not to load.
 

BigMcGuire

Cancelled
Jan 10, 2012
9,832
14,020
I've been having this happen on my 2021 iPad Pro 11 especially after hours of website use. I have not had this happen on my MacBooks yet. I kill the Safari app on iPad OS and it starts working again until it eventually just stops loading pages as if the internet has gone out (while other apps work just fine). Sounds similar to what you're reporting - but iPad OS. :/

I've actually started browsing on my MBP more because of this.
 

bogdanw

macrumors 603
Mar 10, 2009
5,499
2,617
The Debug menu (defaults write com.apple.Safari IncludeInternalDebugMenu -bool YES) has some settings related to cache. Maybe disabling Back/Forward Cache can make a difference.
Debug.jpg
 

Artiste212

macrumors regular
Aug 26, 2012
142
73
The Debug menu (defaults write com.apple.Safari IncludeInternalDebugMenu -bool YES) has some settings related to cache. Maybe disabling Back/Forward Cache can make a difference.
View attachment 1987213
Thanks for this info - I'm going to give it a try. I'm keeping a list of changes I make, but I wonder if there's a (?terminal) command to reset the debug menu to it's original settings, in case I lose track of some of them?
 

bogdanw

macrumors 603
Mar 10, 2009
5,499
2,617
Thanks for this info - I'm going to give it a try. I'm keeping a list of changes I make, but I wonder if there's a (?terminal) command to reset the debug menu to it's original settings, in case I lose track of some of them?
I am not aware of a command to revert all the changes, only the menu WebKit Internal Features has such an option at the end.
As the changes are written into plist files, you can make a backup of them before making the changes.
~/Library/Containers/com.apple.Safari/Data/Library/Preferences/com.apple.Safari.plist
~/Library/Preferences/com.apple.Safari.plist
 
  • Like
Reactions: Artiste212

Artiste212

macrumors regular
Aug 26, 2012
142
73
Thanks again. I'll copy those plists and hope I don't need to use them, but good to know they're there just in case. I try to keep a record of every System and Safari parameter I change (apart from those that are easily user accessible) because hey, you never know when there will be unintended consequences from a minor tweak that was long ago forgotten.
 

AL2TEACH

macrumors 65816
Feb 17, 2007
1,112
424
North Las Vegas, NV.
Has anybody else seen this? I see it on my PowerBook M1 and Mac Studio M1 Ultra.

Safari might be running fine for hours, then stops loading new pages or updating any window. Quitting and relaunching the app does not change anything. A new tab stays blank and does not load the Start page.

The only thing that fixes it is quitting Safari, opening Activity Monitor and killing all ""Safari Webcontent (cached pages.)

I have seen this on multiple systems running Monterey. I have disabled Extensions but it is independent of that.

Has anybody else seen this?

Some WebKit content in Mail also appears not to load.
yep, happened to me once and I couldn't restart or quit. I had to use another program to force quit safari.
 

fakestrawberryflavor

macrumors 6502
May 24, 2021
377
491
I had this issue a few months ago I couldn’t resolve, but I was using the Beta of MacOS and Safari Tech Preview. I attributed this issue to buggy beta software.

I no longer have the issue but I have wiped and reloaded to non-beta Monterey and regular Safari.
 

planetf1

macrumors 6502a
Aug 8, 2014
543
196
Hampshire, UK
I get this issue… well similar. Usually restarting safari fixes it. Seems like sone kind of resource limitation but I’ve not been able to pin it down
 

planetf1

macrumors 6502a
Aug 8, 2014
543
196
Hampshire, UK
The Debug menu (defaults write com.apple.Safari IncludeInternalDebugMenu -bool YES) has some settings related to cache. Maybe disabling Back/Forward Cache can make a difference.
View attachment 1987213
I've used this in the past, but not seen it work on recent OS/safari versions

Do you have this working on Monterey?

I can write the value, but I see no debug menu after safari restart
 

webbga

macrumors regular
Feb 22, 2014
241
154
Cincinnati, Ohio
I have been having abysmal Safari Internet performance since upgrading to the Mac Studio. I do not know if it is the Mac Studio or my Internet. Other devices do not seem affected to the same degree. My frustration is mostly centered on my banking site and trying to open Google search. I tried on Chrome this morning and it seemed better. I am going to try to turn off Private Relay and see if it makes a difference. I wish I could turn it off for just certain websites, but I do not see an option for that
 
Last edited:

bogdanw

macrumors 603
Mar 10, 2009
5,499
2,617
I've used this in the past, but not seen it work on recent OS/safari versions

Do you have this working on Monterey?

I can write the value, but I see no debug menu after safari restart
Give Terminal Full Disk Access and try with
Code:
defaults write ~/Library/Containers/com.apple.Safari/Data/Library/Preferences/com.apple.Safari.plist IncludeInternalDebugMenu -bool YES
 
  • Like
Reactions: planetf1

haralds

macrumors 68030
Original poster
Jan 3, 2014
2,828
1,154
Silicon Valley, CA
Still a problem with 12.5. Technology preview has the same issue. Firefox does not. Quitting Safari is not enough, have to reboot!
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.