Safari hard hangs on launch when AdGuard for Safari is installed and when you have many profiles in Safari

### Please answer the following questions for yourself before submitting an issue.

- [X] I am running the latest version
- [X] I made sure all content blockers are enabled in Safari settings
- [X] I checked the documentation and found no answer
- [X] I checked to make sure that this issue has not already been filed

### AdGuard version

1.11.19

### Environment

```markdown
- OS: Sequoia 15.0 (also affected 14.x)
- Safari version: 18.0 (20619.1.26.31.6) (also affected 17.x)
```

### What filters do you have enabled?

_No response_

### Issue Details

Steps to reproduce:
1. Install extension
2. Launch Safari
3. Note Safari hangs with beach ball indefinitely
4. Force quit Safari and generate MacOS crash/hang log

### Expected Behavior

Safari should launch normally and the extension should work

### Actual Behavior

- Safari hard hangs, with the spinning beach ball.
- Force quitting Safari is the only way to regain control.
- This is fully reproducible 100% of the time.
- Uninstalling AdGuard for Safari immediately fixes the issue.
- This started back around April with the previous versions of Safari, MacOS and AdGuard for Safari.
- None of the updates have fixed it
- Redacted MacOS crash log is attached.

### Screenshots

Date/Time: 2024-10-01 12:38:51.621 +0200
End time: 2024-10-01 12:39:05.565 +0200
OS Version: macOS 15.0 (Build 24A335)
Architecture: arm64e
Report Version: 53

Command: Safari
Path: /Volumes/VOLUME/*/Safari.app/Contents/MacOS/Safari
Identifier: com.apple.Safari
Version: 18.0 (20619.1.26.31.6)
Build Version: 2
Project Name: Safari
Source Version: 7619001026031006
Is First Party: Yes
Architecture: arm64e
Parent: launchd [1]
PID: 33770
Time Since Fork: 14s

Event: hang
Duration: 13.94s
Duration Sampled: 1.60s (process was unresponsive for 12 seconds before sampling)
Steps: 16 (100ms sampling interval)

Hardware model: MacBookPro18,3
Active cpus: 10
HW page size: 16384
VM page size: 16384

Time Since Boot: 324627s
Time Awake Since Boot: 295963s
Time Since Wake: 12671s

Fan speed: 0 rpm
Total CPU Time: 2.646s (4.0G cycles, 6.4G instructions, 0.62c/i)
Advisory levels: Battery -> 3, User -> 2, ThermalPressure -> 0, Combined -> 2
Free disk space: 70.75 GB/926.35 GB, low space threshold 3072 MB
Vnodes Available: 74.73% (196671/263168)

Processes reached dispatch thread soft limit (64): Safari [33770]

Preferred User Language: en-GB
Country Code: GB
Keyboards: ABC
OS Cryptex File Extents: 209

--------------------------------------------------
Timeline format: stacks are sorted chronologically
Use -i and -heavy to re-report with count sorting
--------------------------------------------------

Heaviest stack for the main thread of the target process:
16 start + 2840 (dyld + 25204) [0x191214274]
16 SafariMain + 468 (Safari + 4787024) [0x1c2470b50]
16 NSApplicationMain + 888 (AppKit + 17484) [0x19518944c]
16 -[NSApplication run] + 480 (AppKit + 187260) [0x1951b2b7c]
16 -[BrowserApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 228 (Safari + 887244) [0x1c20b89cc]
16 -[NSApplication(NSEventRouting) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 688 (AppKit + 9832376) [0x195ae57b8]
16 _DPSNextEvent + 660 (AppKit + 240240) [0x1951bfa70]
16 _BlockUntilNextEventMatchingListInModeWithFilter + 76 (HIToolbox + 1122336) [0x19caba020]
16 ReceiveNextEventCommon + 636 (HIToolbox + 1121980) [0x19cab9ebc]
16 RunCurrentEventLoopInMode + 292 (HIToolbox + 1097932) [0x19cab40cc]
16 CFRunLoopRunSpecific + 572 (CoreFoundation + 508724) [0x19167c334]
16 __CFRunLoopRun + 1996 (CoreFoundation + 512380) [0x19167d17c]
16 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 16 (CoreFoundation + 775808) [0x1916bd680]
16 _dispatch_main_queue_callback_4CF + 44 (libdispatch.dylib + 76676) [0x1913f2b84]
16 _dispatch_main_queue_drain + 980 (libdispatch.dylib + 77672) [0x1913f2f68]
16 _dispatch_client_callout + 20 (libdispatch.dylib + 18008) [0x1913e4658]
16 _dispatch_call_block_and_release + 32 (libdispatch.dylib + 10488) [0x1913e28f8]
16 __59-[WBSExtensionsController loadSuitableDiscoveredExtensions]_block_invoke + 60 (SafariSharedUI + 118424) [0x1d1802e98]
16 -[WBSExtensionsController _loadExtensions:skipEqualityCheck:] + 1052 (SafariSharedUI + 123164) [0x1d180411c]
16 -[WBSExtensionsController _validateAndLoadExtensionIfNecessary:attemptRetryOnFailure:isExtensionNewlyInstalled:] + 264 (SafariSharedUI + 124620) [0x1d18046cc]
16 -[SafariExtensionsController _computeCodeSigningDictionaryOnDiskForExtension:attemptRetryOnFailure:] + 16 (Safari + 4770932) [0x1c246cc74]
16 -[WBSExtensionsController(SafariExtras) safari_computeCodeSigningDictionaryOnDiskIfNecessaryForExtension:attemptRetryOnFailure:] + 268 (Safari + 4979100) [0x1c249f99c]
16 -[NSExtension(SafariServicesExtras) sf_untrustedCodeSigningDictionaryFromCodeRef:enforcingCodeSigningRequirement:skipValidityCheck:failedCodeSigningRequirements:] + 748 (SafariServices + 60884) [0x1b8921dd4]
16 SecStaticCodeCheckValidityWithErrors + 228 (Security + 2065716) [0x1947ff534]
16 Security::CodeSigning::SecStaticCode::staticValidate(unsigned int, Security::CodeSigning::SecRequirement const*) + 2424 (Security + 2112756) [0x19480acf4]
16 Security::Dispatch::Group::wait() + 36 (Security + 3264012) [0x194923e0c]
16 _dispatch_group_wait_slow + 56 (libdispatch.dylib + 21528) [0x1913e5418]
16 __ulock_wait + 8 (libsystem_kernel.dylib + 11148) [0x191557b8c]
*16 ??? (kernel.release.t6000 + 6143940) [0xfffffe0008cf3fc4]

Process: Safari [33770]
Path: /Volumes/VOLUME/*/Safari.app/Contents/MacOS/Safari
Identifier: com.apple.Safari
Version: 18.0 (20619.1.26.31.6)
Build Version: 2
Project Name: Safari
Source Version: 7619001026031006
Is First Party: Yes
Architecture: arm64e
Parent: launchd [1]
UID: 501
Footprint: 157.35 MB
Time Since Fork: 14s
Num samples: 16 (1-16)
CPU Time: 0.023s (26.3M cycles, 17.1M instructions, 1.54c/i)
Note: Unresponsive for 12 seconds before sampling
Num threads: 100
Note: 4 idle work queue threads omitted
Dispatch Thread Soft Limit Reached: 64 (too many dispatch threads blocked in synchronous operations)

Thread 0x2d6eaa DispatchQueue "com.apple.main-thread"(1) 16 samples (1-16) priority 47 (base 47)

16 start + 2840 (dyld + 25204) [0x191214274] 1-16
16 SafariMain + 468 (Safari + 4787024) [0x1c2470b50] 1-16
16 NSApplicationMain + 888 (AppKit + 17484) [0x19518944c] 1-16
16 -[NSApplication run] + 480 (AppKit + 187260) [0x1951b2b7c] 1-16
16 -[BrowserApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 228 (Safari + 887244) [0x1c20b89cc] 1-16
16 -[NSApplication(NSEventRouting) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 688 (AppKit + 9832376) [0x195ae57b8] 1-16
16 _DPSNextEvent + 660 (AppKit + 240240) [0x1951bfa70] 1-16
16 _BlockUntilNextEventMatchingListInModeWithFilter + 76 (HIToolbox + 1122336) [0x19caba020] 1-16
16 ReceiveNextEventCommon + 636 (HIToolbox + 1121980) [0x19cab9ebc] 1-16
16 RunCurrentEventLoopInMode + 292 (HIToolbox + 1097932) [0x19cab40cc] 1-16
16 CFRunLoopRunSpecific + 572 (CoreFoundation + 508724) [0x19167c334] 1-16
16 __CFRunLoopRun + 1996 (CoreFoundation + 512380) [0x19167d17c] 1-16
16 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 16 (CoreFoundation + 775808) [0x1916bd680] 1-16
16 _dispatch_main_queue_callback_4CF + 44 (libdispatch.dylib + 76676) [0x1913f2b84] 1-16
16 _dispatch_main_queue_drain + 980 (libdispatch.dylib + 77672) [0x1913f2f68] 1-16
16 _dispatch_client_callout + 20 (libdispatch.dylib + 18008) [0x1913e4658] 1-16
16 _dispatch_call_block_and_release + 32 (libdispatch.dylib + 10488) [0x1913e28f8] 1-16
16 __59-[WBSExtensionsController loadSuitableDiscoveredExtensions]_block_invoke + 60 (SafariSharedUI + 118424) [0x1d1802e98] 1-16
16 -[WBSExtensionsController _loadExtensions:skipEqualityCheck:] + 1052 (SafariSharedUI + 123164) [0x1d180411c] 1-16
16 -[WBSExtensionsController _validateAndLoadExtensionIfNecessary:attemptRetryOnFailure:isExtensionNewlyInstalled:] + 264 (SafariSharedUI + 124620) [0x1d18046cc] 1-16
16 -[SafariExtensionsController _computeCodeSigningDictionaryOnDiskForExtension:attemptRetryOnFailure:] + 16 (Safari + 4770932) [0x1c246cc74] 1-16
16 -[WBSExtensionsController(SafariExtras) safari_computeCodeSigningDictionaryOnDiskIfNecessaryForExtension:attemptRetryOnFailure:] + 268 (Safari + 4979100) [0x1c249f99c] 1-16
16 -[NSExtension(SafariServicesExtras) sf_untrustedCodeSigningDictionaryFromCodeRef:enforcingCodeSigningRequirement:skipValidityCheck:failedCodeSigningRequirements:] + 748 (SafariServices + 60884) [0x1b8921dd4] 1-16
16 SecStaticCodeCheckValidityWithErrors + 228 (Security + 2065716) [0x1947ff534] 1-16
16 Security::CodeSigning::SecStaticCode::staticValidate(unsigned int, Security::CodeSigning::SecRequirement const*) + 2424 (Security + 2112756) [0x19480acf4] 1-16
16 Security::Dispatch::Group::wait() + 36 (Security + 3264012) [0x194923e0c] 1-16
16 _dispatch_group_wait_slow + 56 (libdispatch.dylib + 21528) [0x1913e5418] 1-16
16 __ulock_wait + 8 (libsystem_kernel.dylib + 11148) [0x191557b8c] 1-16
*16 ??? (kernel.release.t6000 + 6143940) [0xfffffe0008cf3fc4] 1-16

[... other threads omitted ...]

Process: AdGuardForSafariBlockerExtension (AdGuardForSafariBlockerExtension) [33798] (suspended)
UUID: 3BD63251-94DB-32C1-8B20-17ED50215683
Path: /Applications/AdGuard for Safari.app/Contents/PlugIns/AdGuardForSafariBlockerExtension.appex/Contents/MacOS/AdGuardForSafariBlockerExtension
Identifier: com.adguard.safari.AdGuard.BlockerExtension
Version: 1.11.19 (335)
Team ID: TC3Q7MAJXF
Shared Cache: D997B0E9-E31B-35FE-B129-3171B279B087 slid base address 0x191148000, slide 0x11148000 (System Primary)
Architecture: arm64
Parent: launchd [1]
Responsible: Safari [33770]
UID: 501
Footprint: 4353 KB
Time Since Fork: 14s
Num samples: 16 (1-16)
Note: Suspended for 16 samples
Num threads: 4
Note: 2 idle work queue threads omitted

Thread 0x2d6fda DispatchQueue "com.apple.main-thread"(1) 16 samples (1-16) priority 4 (base 4)

16 start + 2840 (dyld + 25204) [0x191214274] 1-16
16 NSExtensionMain + 204 (Foundation + 868796) [0x1928b41bc] 1-16
16 EXExtensionMain + 304 (ExtensionFoundation + 107560) [0x1ee5f3428] 1-16
16 ??? (PlugInKit + 120828) [0x1a08077fc] 1-16
16 ??? (PlugInKit + 118536) [0x1a0806f08] 1-16
16 ??? (PlugInKit + 119452) [0x1a080729c] 1-16
16 ??? (PlugInKit + 119852) [0x1a080742c] 1-16
16 -[NSXPCListener resume] + 308 (Foundation + 497376) [0x1928596e0] 1-16
16 xpc_main + 64 (libxpc.dylib + 103204) [0x1912ae324] 1-16
16 _xpc_main + 276 (libxpc.dylib + 170132) [0x1912be894] 1-16
16 _xpc_objc_main + 700 (libxpc.dylib + 104328) [0x1912ae788] 1-16
16 -[NSRunLoop(NSRunLoop) run] + 64 (Foundation + 860052) [0x1928b1f94] 1-16
16 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 212 (Foundation + 370184) [0x19283a608] 1-16
16 CFRunLoopRunSpecific + 572 (CoreFoundation + 508724) [0x19167c334] 1-16
16 __CFRunLoopRun + 1212 (CoreFoundation + 511596) [0x19167ce6c] 1-16
16 __CFRunLoopServiceMachPort + 160 (CoreFoundation + 517564) [0x19167e5bc] 1-16
16 mach_msg + 24 (libsystem_kernel.dylib + 4476) [0x19155617c] 1-16
16 mach_msg_overwrite + 480 (libsystem_kernel.dylib + 39384) [0x19155e9d8] 1-16
16 mach_msg2_trap + 8 (libsystem_kernel.dylib + 3636) [0x191555e34] 1-16
*16 ??? (kernel.release.t6000 + 242344) [0xfffffe00087532a8] (suspended) 1-16

Thread 0x2d7178 16 samples (1-16) priority 4 (base 4)

16 start_wqthread + 0 (libsystem_pthread.dylib + 8424) [0x1915920e8] 1-16
*16 ??? (kernel.release.t6000 + 796368) [0xfffffe00087da6d0] (suspended) 1-16

Binary Images:
0x100978000 - ??? com.adguard.safari.AdGuard.BlockerExtension 1.11.19 (335) <3BD63251-94DB-32C1-8B20-17ED50215683> /Applications/AdGuard for Safari.app/Contents/PlugIns/AdGuardForSafariBlockerExtension.appex/Contents/MacOS/AdGuardForSafariBlockerExtension
0x19120e000 - 0x191290663 dyld (1231.3) <02E3CA05-E849-31C8-A4F2-C7292420DFAD> /usr/lib/dyld
0x191295000 - 0x1912dffff libxpc.dylib (2866.1.1) /usr/lib/system/libxpc.dylib
0x191555000 - 0x19158fff7 libsystem_kernel.dylib (11215.1.10) <9A72FD37-D827-3D6D-B6F4-422621E36C94> /usr/lib/system/libsystem_kernel.dylib
0x191590000 - 0x19159cfff libsystem_pthread.dylib (535) /usr/lib/system/libsystem_pthread.dylib
0x191600000 - 0x191af6fff com.apple.CoreFoundation 6.9 (3038.1.402) <90EB8FD1-925E-38EB-A056-EB4253B6A29E> /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation
0x1927e0000 - 0x19362dfff com.apple.Foundation 6.9 (3038.1.402) /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation
0x1a07ea000 - 0x1a082afff com.apple.pluginkit.framework 1.0 (1) /System/Library/PrivateFrameworks/PlugInKit.framework/Versions/A/PlugInKit
0x1ee5d9000 - 0x1ee6a3fff com.apple.ExtensionFoundation 97 (97) <9BFC49F6-D19F-383F-B159-55ECD06C63F2> /System/Library/Frameworks/ExtensionFoundation.framework/Versions/A/ExtensionFoundation
*0xfffffe0008718000 - 0xfffffe0008febfff kernel.release.t6000 (11215.1.10) <3BD63A8A-A8AF-3B6F-B7D1-090482E1FBF4>__TEXT_EXEC /System/Library/Kernels/kernel.release.t6000

[... rest of file omitted ...]

### Additional Information

This issue is a few months old and forced me to uninstall AdGuard after many years of use.
I have been unable to find a cause and no updates over the last few months have made any difference.
My Safari environment is only slightly unusual in that I have a long Reading List (1-2k items) and 25 Safari Profiles.