MAC 0S27 had ruined SAFARI!

“We” are users like you and have no power to implement any suggestions. Apple employees are generally precluded from even reading these forums, with the exception of moderators who only monitor for compliance with the T&C.

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Personally, Safari is working just fine for me on macOS 27.0.1 (as it was on 27.0). There have been very few complaints about Safari (I have seen or two at most). Have you rebooted your Mac? If not, that's the first step. If that does not help, then see if the problem is present when you boot in safe mode. That process performs some system cleanup and clears caches, and also disables 3rd party extensions that may cause problems.

Start up your Mac in safe mode - Apple Support

If that does not correct the issue, test in a new user account. A newly-created user account will have all settings at default, and if the issue does not occur in that new account then it provides guidance on what may need to be changed to correct the issue.

Add a user or group on Mac - Apple Support

Once the testing is complete, the new account can easily be deleted.

Delete a user or group on Mac – Apple Support

Those steps will help to isolate the problem.

It might help to download and run EtreCheck, written by a long-time forum member. The free version is fine. Post the full report using the Additional Text button. No personal information is revealed. 

If you have 3rd party ‘protection’ software installed, that may be the problem. That includes:

• Cleaners (software claiming to automatically free up space)
• Optimizers (software claiming to make your Mac run faster)
• Antivirus software
• VPN software (unless provided by a school/employer to enable access to internal resources from a remote location)

Such 3rd party system ‘helpers’, ‘cleaners’ and ‘protectors’ do more harm than good. In fact, such products are completely unnecessary for macOS and the only ‘good’ (if you want to call it that) they do is to put money in the developers’ pockets. Cleaners and protectors cause compatibility issues, often after macOS updates. Commercial VPNs claim to hide your browsing activity from websites, and while that may be true those VPN providers just sell your browsing data to others. For the user, all of these types of software offer only harm…and if that is limited to harm to your bank account, then count yourself lucky. If you have installed such software, follow the developer’s instructions to completely uninstall it (note that some developers fail to provide instructions and their software installs can be pervasive, meaning the only way to truly remove it is to erase your Mac, reinstall macOS then restore your user files from a backup).

John11947 wrote:

Done..made no difference. Safari just is not working. GOogle Chrome works…..Apple screwed up the update! I moved from Windows to Apple to avoid such things…Now Apple is letting out untested upgrades?

Please download and run EtreCheck (the free version, don’t need the paid version here), and use the Share to share the results to the Mac clipboard. Then open a new reply here, and press the Additional Text button (the button that looks like a printed page), and paste and post the hardware and software configuration report here. From that, we can get a little more detail about what is installed and what is running here.

John Scott1 wrote:

Safari 27 on Mac OS 27 giving me fits when playing videos from Prime video or Discovery+. Haven't noticed any YouTube issues. My work around has been to either refresh page for video or turn off and back on WiFi connection. I'm sure its a bug of some kind, I think there are several bugs in Safari and Mac OS 27 that need to be fixed. One of the more buggy upgrades I have experienced in a while with MacOS or any Apple OS. I have resorted to just using another browser until Safari gets some fixes.

Please download and run EtreCheck (the free version, don’t need the paid version here), and use the Share to share the results to the Mac clipboard. Then open a new reply here, and press the Additional Text button (the button that looks like a printed page), and paste and post the hardware and software configuration report here. From that, we can get a little more detail about what is installed and what is running here.

John11947 wrote:

WHY should APPLE be able to screw up another program and to not be available to address that?

How do I know what ELSE they have disrupted that I have not discovered yet?

Apple should at least have a place to report glitches and maybe even RESPOND to them!

So no configuration report, some add-on anti-malware that’s not working, and unwilling to remove the added anti-malware and revert to the built in anti-malware and test?

I would again then encourage you to request assistance with the add-on security app vendor. Or remove the add-on and test again, using the built-in anti-malware.

Add-on anti-malware ties into undocumented and unsupported and unstable interfaces, all too reminiscent of how malware itself tries to access internal data and internal interfaces.

Remove any add-on security apps, remove any add-on VPN apps, remove any add-on firewall apps, remove any add-on cleaner apps, disable all Safari extensions, and test again.

Just my ha'penny worth. I had big problems with Safari slowing down loading webpages and often not loading at all. I tried every fix recommended online without success. I read somewhere that Google apps can cause Safari issues. I installed Google Drive recently and although I can't be sure that Safari slowdown started after that, I removed G Drive completely from my MBAir M5, including google updater. Much to my pleasant surprise, Safari has started working properly, loads webpages without slowing down, doesn't hang as it used to and I am a happy camper. This may be a coincidence but nothing else worked to fix Safari for me. I hope it works for others but it is worth looking for and trying before the "reinstall" option. Please check System settings > Login items > Background app activity which is where 'googleupdater.app' was lurking. Getting rid of all google entries in library finally removed this. Restarting after this restored Safari for me. Apologies for any assumptions and mistakes, I am no tech expert.

Did you clear your cache recently perhaps? It could have cleared out the temporary files the Safari uses to make it easier to log into internet sites. Also check your extensions. Are you logged into the correct user identity? Do you have some competing anti malware software? Do you have little space on your computer ? If so then delete the last backup after backing up again. If you’re using beta or developer mode you’ll need to change that if it’s creating an issue

I had SOME success in fixing this, but I had to TURN OFF my ANTI-VIRUS to get Safari to work. So far the AntiVirus company cannot supply and answer, and APPLE does not respond. I also find that APPLE MAIL is also slower. The ICONS do not come right up; Mail is often shown but will not open, or will open but not show as read; and SEND sometimes takes time to process.

USERS or not; I believe APPLE has pulled a MICROSOFT and let out an update that cause more problems than it solves--and they do not want to admit it. \\TOO BAD. I came to APPLE to get away from this type of poor testing...and here we go.

Safari 27 on Mac OS 27 giving me fits when playing videos from Prime video or Discovery+. Haven't noticed any YouTube issues. My work around has been to either refresh page for video or turn off and back on WiFi connection. I'm sure its a bug of some kind, I think there are several bugs in Safari and Mac OS 27 that need to be fixed. One of the more buggy upgrades I have experienced in a while with MacOS or any Apple OS. I have resorted to just using another browser until Safari gets some fixes.

John11947 wrote:

Now Apple is letting out untested upgrades?

There were approximately one million users on the public beta versions of macOS 27, for two months before the full release. Are there minor bugs? Sure. Are there major issues for a significant number of users? No, that's the point of beta testing.

Of course, Apple didn't test Safari on your Mac. But since this is clearly not a widespread issue (nothing on it in the tech reporting blogs, some of whom manifestly delight in calling out issues with macOS), the cause will turn out to be something you've installed on your Mac. I get it, blaming Apple is easier. Maybe Apple can help you.

Official Apple Support

They have a place to report them - see neuroanatomist's post earlier for the feedback link.

Apple don't read posts here (except for moderation) and they only deal with feedback issues if enough people report the same problem.

userincapetown wrote:

Also wondering why Apple doesn't update Safari as often as other browsers? I use Firefox as a secondary browser, and they are always pushing small updates, much like apps do. Safari only gets updated when Mac OS updates come through, which I imagine is not nearly often enough to deal with all the issues described here and elsewhere.

I haven’t seen much in the way of reported issues with Safari itself (including this thread, which presently does not appear to be an issue with Safari itself), and those Safari reports that I have seen posted are variously known problems with older versions (older certificates, etc), or cases where a third-party security app (seemingly, this thread) or an extension (ad-blocker, coupon app, whatever) are causing issues, or where a website is faulty or offline, or is built specifically for Chrome or such. Or involve network errors, private relay glitches, or such.

As for what gets included in the WebKit releases, here are the release notes, with updates available roughly every two months: Safari Release Notes | Apple Developer Documentation

As for why every two months or so, these sorts of ”why?” questions are something only Apple can answer. Not us. Safari is usually distributed with the operating system updates, not separately. If you want the bleeding-edge technology preview: Safari Technology Preview - Safari - Apple Developer (and the blog)

John11947 wrote:

I had SOME success in fixing this, but I had to TURN OFF my ANTI-VIRUS to get Safari to work. So far the AntiVirus company cannot supply and answer, and APPLE does not respond. I also find that APPLE MAIL is also slower. The ICONS do not come right up; Mail is often shown but will not open, or will open but not show as read; and SEND sometimes takes time to process.

USERS or not; I believe APPLE has pulled a MICROSOFT and let out an update that cause more problems than it solves--and they do not want to admit it. \\TOO BAD. I came to APPLE to get away from this type of poor testing...and here we go.

Isn’t this a discussion with your anti-malware provider?

That if that’s not removed and the built-in anti-malware used.

Done..made no difference. Safari just is not working. GOogle Chrome works…..Apple screwed up the update! I moved from Windows to Apple to avoid such things…Now Apple is letting out untested upgrades?

The bookmarks drop down menu stopped working-no bookmarks appear on the drop down menu. I emptied the cache, cleared history, no dice. Firefox bookmarks menu is working fine. Have never seen this before in Safari. On a few random occasions it works but not long enough to scroll down and click on any of them.

WHY should APPLE be able to screw up another program and to not be available to address that?

How do I know what ELSE they have disrupted that I have not discovered yet?

Apple should at least have a place to report glitches and maybe even RESPOND to them!

Also wondering why Apple doesn't update Safari as often as other browsers? I use Firefox as a secondary browser, and they are always pushing small updates, much like apps do. Safari only gets updated when Mac OS updates come through, which I imagine is not nearly often enough to deal with all the issues described here and elsewhere.

YEAH--So YOU say, but it looks like others are having similar problems. Just because APPLE says so, doesn't mean it was done right.

No such problems here on multiple Macs.

Try some actual troubleshooting instead of just complaining.

The problem is with your Mac, not Safari or macOS 27.

I have the same problem. Apple needs to actually start working and get bugs fixed.

I have the same problem.

Correct. You have the same unwillingness to fix your Mac as everyone else in this Discussion. Only you can fix that.