I-Firefox Community Forum

Despite re-installing Firefox sidebar is still missing (I spent 3 full days trying to fix it before re-installing). I also can't obtain another tab - I'm restricted just to the one page I'm currently using

I've been using firefox for a little while- maybe three months now. I'm no expert on any of the config options. I run firefox using the built in VPN that my friend showed me how to enable, and I've been using it since. But now, as of roughly today, whenever I enable the VPN, no websites will load. At all. When I turn it off, they load instantly. But whenever I turn it on, it just gets stuck loading forever and ever, never actually getting anywhere. I tried enabling network.dns.disableIPv6 in the config page, because that's what I saw on a mozilla support page- nothing. Didn't do anything. The browser.ipprotection.enabled is still on, and I didn't change anything in settings. There was a firefox update very recently, but everything still worked with the VPN on. I just updated my computer, but I don't think that's it either because it wasn't loading things earlier today either. Not sure how to fix this. Please help?

My system • Windows 11 on a Dell laptop. • Firefox Version 157, my default browser. • Norton 360 Standard. • Two Firefox profiles; the warning appears in both. • Firefox Troubleshooting Mode does not eliminate the warning https://support.mozilla.org/en-US/kb/sslkeylogfile-warning?utm_source=chatgpt.com

What I have observed The warning appears on Firefox network-error pages, including when the internet is disconnected or I enter an incorrect URL. A particularly reproducible example occurs after I successfully log in to Kotak Net Banking and select Help → Raise a Query. Firefox then displays a connection/privacy warning associated with the embedded page. I do not see the same behaviour in Chrome or Firefox Private Browsing when performing the equivalent Kotak steps. Troubleshooting already completed 1. Norton Safe Web HTTPS scanning was disabled and re-enabled without resolving the issue. 2. QUIC/HTTP3 scanning, WebSocket Protocol Scanning and DNS/DoH scanning were individually tested without resolving it. 3. Firefox Enterprise Policies are inactive. 4. I found no SSLKEYLOGFILE entry in either Windows User Variables or System Variables. 5. Norton and Dell malware scans found no malware. 6. The warning also occurs when I connect through a mobile phone hotspot rather than my usual BSNL connection. Questions for Mozilla's technical contributors 1. Does this warning establish that Firefox detects SSLKEYLOGFILE, or could another mechanism produce the same message? 2. Can the variable be inherited by Firefox from a parent process or injected into its running process even when it is absent from the Windows User and System Variables? 3. What is the safest way to identify which process or security product is setting it on Windows 11? 4. Is there a known interaction between Firefox 157 and Norton 360 Standard that could explain this behaviour? 5. What evidence should I collect to distinguish a Norton issue from a Firefox issue without disabling security protections or modifying Windows settings? I am not looking to disable security features indiscriminately. I want to identify the actual cause and, if Norton is responsible, determine the precise setting that needs attention. I would particularly appreciate a response from a contributor with Windows networking, Firefox TLS or security-software diagnostic experience. Thank you.

And it is rather annoying that the report does not tell me which addon is misbehaving either. I do know it runs just fine without any addons enabled so hence, the problem lies with a buggy addon and I'm left in the dark about which one.

It is really sad that there is no way to contact mozilla directly The update installed on my Windows 7 64 bit is now storing cookies for Proton Mail and that makes the storage amt increase from 29Kb to 78Kb and I am not happy that I can not find a way to remove or revert the update so detail steps to complete that process would be nice. As for my future use of Firefox and involvement with Mozilla I am very seriously considering NO further use of both and your claims are starting to become lies you are permitting tracking in my view of this behavior Community Members should not be dealing with these concerns GET OFF your lazy back side Mozilla

A website added as exception is deleted next time Firefox is used. Cannot find any solution. Can turn off ETP manually via shield symbol in url bar.

Edition Windows 10 Pro Version 22H2 Installed on 30/10/2024 OS Build 19045.6466 157.0 Firefox Release

Firefox keeps crashing/hanging on startup. Any other browser I use is fine. Been using Firefox for years and would like to keep using it. This has been going on since August, so I have not really been using it since then. Tried all the troubleshoot steps that Mozilla recommends but still crashing e.g reinstall, fresh install.

i have tried multiple extent ions to disable ai in the search box on Firefox an nothing works i still get ai. Again why does everyone think ai is so great. why again are people not given a choice like do you want or not want ai. HATE AI IN SAMSUNG GEMINI AND GOOGLE do not want ai anywhere ion my computer or i phone and please let me know if there is an addon or extensions in Firefox to not see it in my searches in google searches

Hello, I installed the Firefox 158.8 update on my iMac (macOS Sequoia 15.8.1) today. All websites are working as usual, except for Amazon Prime Video; it loads once and then freezes. I can't perform any actions on the page—everything remains unresponsive. I can't enter a different URL in the address bar or reload the page, either. The only thing I can do is close the page. I’ve cleared the cache and disabled ad blockers, but nothing changes. Strangely, this doesn't happen with Firefox on my MacBook. What could the problem be?

regards Burkhard

For the last several weeks, one of my computers when it updated to the new settings menu (version 156ish?), it has lost the ability to maintain some of the synced profile settings. For example, I have a couple websites that I list in the exceptions to not have Firefox clear the cookies, and I additionally have the clear cookies and site data check box enabled so that every other website I visit clears upon exiting. This is the setting combination I have utilized for years to keep the cookies from only 2 websites and clear out everything else.

On one of my computers, I'm able to add the exception, and as long as I do not close Firefox, the website exception settings stick. However, as soon as I exit Firefox, and open it back up, the settings clear themselves again, and I have to manually enter the exceptions again. This is very frustrating because one of the sites that I keep the cookies on the exception list has multiple different logins saved so that I don't have to manually re-login to every time I open Firefox.

I have attempted a refresh, and that did not fix the problem. I have fully uninstalled Firefox, manually deleted the %APPDATA%\Mozilla\ folder contents, reinstalled foxfire and this too does not fix the problem.

The weirdest part of this whole issue is my laptop, does not have this problem and the exceptions are sticking so I know that this setting combo works. Additionally, I have tried unchecking the clear cookies and site data box and this too is not allowing the exceptions to stick.

I have also tried re-syncing my account to pull the settings from my laptop and this too is not working.

This experience is on Firefox 157.0.1 (64-bit), Windows 11 Pro 26H2

Thanks for your time and please advise as to how to fix.

I have been having random crashes Firefox Snap on Kubuntu 24.04 (and now 26.04). Sometimes Firefox will run stably for over an hour, sometimes it will crash in less then a minute from (re-)launch. I have tried the usual troubleshooting steps of 'run in troubleshoot mode', 'refresh', disable plugins, but the crashing seems to happen even when running in troubleshoot mode. I also have not been able to figure out any kind of event or user-action that triggers the crash; it might happen while browsing, it might happen while I am not even at my computer. At first I thought 'the Devs will handle this', but it has been some 6 months so I think my case is not very common/pressing to the community. I'd like to take a more proactive approach in solving the problem. I am still a novice at software fixing, so I might have skipped or missed a very basic step in the '10 things to try to fix Firefox'.

Process: crashreporter [1930] Path: /Applications/Firefox.app/Contents/MacOS/crashreporter.app/Contents/MacOS/crashreporter Identifier: org.mozilla.crashreporter Version: 1.0 Code Type: ARM-64 (Native) Role: Unspecified Parent Process: firefox [1875] Coalition: org.mozilla.firefox [1424] Responsible Process: firefox [1875] User ID: 501

Date/Time: 2026-10-15 16:40:02.8902 -0700 Launch Time: 2026-10-15 16:40:02.8144 -0700 Hardware Model: Mac15,14 OS Version: macOS 27.0.1 (26A434) Release Type: User

Crash Reporter Key: 99AF36FD-ABB0-6C7F-D431-8CB88902FCCB Incident Identifier: 8FFD7652-AEB8-449A-83CE-3DFCC27F451A

Time Awake Since Boot: 1500 seconds

System Integrity Protection: enabled

Triggered by Thread: 0 main, Dispatch Queue: com.apple.main-thread

Exception Type: EXC_CRASH (SIGABRT) Exception Codes: 0x0000000000000000, 0x0000000000000000

Termination Reason: Namespace SIGNAL, Code 6, Abort trap: 6 Terminating Process: crashreporter [1930]

Application Specific Information: abort() called

Thread 0 Crashed:: main Dispatch queue: com.apple.main-thread 0 libsystem_kernel.dylib 0x187d99650 __pthread_kill + 8 1 libsystem_pthread.dylib 0x187dd597c pthread_kill + 296 2 libsystem_c.dylib 0x187cd8458 abort + 148 3 crashreporter 0x102339bf4 0x1020f8000 + 2366452 4 crashreporter 0x10233ab1c std::process::abort::hd520a7101c5fdc83 + 12 5 crashreporter 0x102339930 _RNvCs1Y7DaGC1cwg_7___rustc12___rust_abort + 12 6 crashreporter 0x102147b5c _RNvCs1Y7DaGC1cwg_7___rustc18___rust_start_panic + 12 7 crashreporter 0x1023398ec _RNvCs1Y7DaGC1cwg_7___rustc10rust_panic + 16 8 crashreporter 0x1022f2804 std::panicking::panic_with_hook::h657ee82e431041f8 + 648 9 crashreporter 0x1022f245c 0x1020f8000 + 2073692 10 crashreporter 0x1022ee700 std::sys::backtrace::__rust_end_short_backtrace::hbd8bf96e4ee54567 + 12 11 crashreporter 0x1022dd578 _RNvCs1Y7DaGC1cwg_7___rustc17rust_begin_unwind + 32 12 crashreporter 0x10233e8a0 core::panicking::panic_fmt::ha09fb24313daf262 + 40 13 crashreporter 0x10233e62c core::result::unwrap_failed::hfd1628134417d023 + 72 14 crashreporter 0x102119788 0x1020f8000 + 137096 15 crashreporter 0x10212b620 0x1020f8000 + 210464 16 crashreporter 0x10212b5c0 0x1020f8000 + 210368 17 crashreporter 0x1022e6ce0 std::rt::lang_start_internal::h11fc0900699d88c7 + 952 18 crashreporter 0x102147af4 main + 52 19 dyld 0x1879ffe80 start + 6688

Thread 0 crashed with ARM Thread State (64-bit):

   x0: 0x0000000000000000   x1: 0x0000000000000000   x2: 0x0000000000000000   x3: 0x0000000000000000
   x4: 0xffffffff94e393c5   x5: 0x0000000000000005   x6: 0x000000000000000a   x7: 0x000000010240c02f
   x8: 0x752b168d8df13b34   x9: 0x752b168c607ec4b4  x10: 0x0000000000000002  x11: 0x00000000fffffffd
  x12: 0x0000000000000000  x13: 0x0000000000000000  x14: 0x0000000000000000  x15: 0x0000000000000000
  x16: 0x0000000000000148  x17: 0x00000001ef53b518  x18: 0x0000000000000000  x19: 0x0000000000000006
  x20: 0x0000000000000103  x21: 0x00000001ed900060  x22: 0x000000010244f7d0  x23: 0x0000000102459000
  x24: 0x0000000000000002  x25: 0x0000000102b3f120  x26: 0x0000000102b3f0f0  x27: 0x0000000000000041
  x28: 0x0000000000000001   fp: 0x000000016dd06040   lr: 0x0000000187dd597c
   sp: 0x000000016dd06020   pc: 0x0000000187d99650 cpsr: 0x40001000
  far: 0x0000000000000000  esr: 0x56000080 (Syscall)

Binary Images:

      0x1020f8000 -        0x10242ffff org.mozilla.crashreporter (*) <cef71e23-29da-3457-b74a-2f85b7be4a0d> /Applications/Firefox.app/Contents/MacOS/crashreporter.app/Contents/MacOS/crashreporter
      0x187d90000 -        0x187dce9ab libsystem_kernel.dylib (*) <f63bf418-8f75-34a4-aaf1-8caf2b9b6a05> /usr/lib/system/libsystem_kernel.dylib
      0x187dcf000 -        0x187ddb91b libsystem_pthread.dylib (*) <5a1828c3-cbc2-3b85-bd07-c8ed10021a41> /usr/lib/system/libsystem_pthread.dylib
      0x187c5d000 -        0x187cdfca3 libsystem_c.dylib (*) <fba7b23e-aa60-3a90-9aa4-a7a2e0ad63ee> /usr/lib/system/libsystem_c.dylib
      0x1879ce000 -        0x187a8d6e3 dyld (*) <d341ddcb-7969-3a9c-8e03-0cf4751398a9> /usr/lib/dyld
              0x0 - 0xffffffffffffffff ??? (*) <00000000-0000-0000-0000-000000000000> ???

External Modification Summary:

 Calls made by other processes targeting this process:
   task_for_pid: 0
   thread_create: 0
   thread_set_state: 0
 Calls made by this process:
   task_for_pid: 0
   thread_create: 0
   thread_set_state: 0
 Calls made by all processes on this machine:
   task_for_pid: 0
   thread_create: 0
   thread_set_state: 0

VM Region Summary: ReadOnly portion of Libraries: Total=1.9G resident=0K(0%) swapped_out_or_unallocated=1.9G(100%) Writable regions: Total=90.2M written=336K(0%) resident=336K(0%) swapped_out=0K(0%) unallocated=89.9M(100%)

                               VIRTUAL   REGION 

REGION TYPE SIZE COUNT (non-coalesced)

===== ======= =

Deferred Reclaim 64.0M 1 Guard 385.0G 1 Malloc 17.8M 9 Malloc Guard Page 3280K 4 OS Alloc Once 32K 1 Stack 8160K 1 Stack Guard 56.0M 1 Untagged 32K 2 Untagged (reserved) 128K 1 reserved VM address space (unallocated) __AUTH 1988K 218 __AUTH_CONST 33.8M 396 __CTF 824 1 __DATA 6992K 403 __DATA_CONST 23.8M 394 __DATA_DIRTY 2141K 349 __FONT_DATA 2352 1 __LINKEDIT 1.6G 2 __OBJC_RO 118.0M 1 __OBJC_RW 2735K 1 __TEXT 380.0M 468 __TPRO_CONST 132K 4 page table in kernel 336K 1 shared memory 32K 1

===== ======= =

TOTAL 387.3G 2261 TOTAL, minus reserved VM space 387.3G 2261

Full Report

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Model: Mac15,14, BootROM 20457.1.29, proc 28:0:20:8 processors, 96 GB, SMC Graphics: Apple M3 Ultra, Apple M3 Ultra, Built-In Display: Studio Display, 5120 x 2880 Retina, Main, MirrorOff, Online Display: Acer S201HL, 900 x 1600, MirrorOff, Online Display: VX1935wm-3, 1440 x 900 (Widescreen eXtended Graphics Array Plus), MirrorOff, Online Memory Module: LPDDR5, Hynix AirPort: spairport_wireless_card_type_wifi (0x14E4, 0x4388), wl0: Jul 2 2026 01:06:10 version 23.10.1039.0.41.51.239 FWID 01-40b8d11f IO80211_driverkit-1585.80 "IO80211_driverkit-1585.80" Sep 18 2026 22:02:52 Bluetooth: Version (null), 0 services, 0 devices, 0 incoming serial ports Network Service: Ethernet, Ethernet, en0 Thunderbolt Bus: Mac Studio, Apple Inc. Thunderbolt Bus: Mac Studio, Apple Inc. Thunderbolt Bus: Mac Studio, Apple Inc. Thunderbolt Bus: Mac Studio, Apple Inc. Thunderbolt Bus: Mac Studio, Apple Inc. Thunderbolt Bus: Mac Studio, Apple Inc. Thunderbolt Device: Studio Display, Apple, 1, 66.15

Hi. Recently I have been having issues connecting to various websites including ones that I have connected to in the past. The first one that I noticed that I could no longer connect to was The Trek (https://thetrek.co/) which I have for several years had no issue connecting to. Now it is happening with various other websites. I want to continue to be able to access the blogs etc. on their website. Thank you!

My computer just updated Firefox. Since that happened I can't stream a movie in full screen. That is, I can make the window as big as the screen, but I can't hide the tabs, time and date, pull down menu titles, etc, I want to see nothing but the movie. On Netflix you typically do this by clicking on the rectangle in the bottom right corner. But now nothing happens when I click on this. Can you help with this?

Thank you

I uploaded an image to show what I mean, but nothing is showing next to the words Uploaded images.

What the living hell is this? This is prevalent on every PC I've installed FF. Just starting a clean browser with a single tab use 19GB of RAM within 1 second... No wonder why browsing been excruciatingly slow since the previous update.

Yes, I use add-ons like 90% of the users, but that should not warrant a serious and consistent memory leak.

Hi, After a Firefox update my tablet, running Windows 11, always freezes up - no mouse, keyboard, etc. - about 8 minutes after startup, and I have to perform a Windows reset. Currently writing this from an older Windows 10 tablet while the current one is resetting!

This is new behaviour. I havent been playing with the settings, so I imagine its come as a side effect of an update...?

Very frustrating since I have come to rely on having 6 permanent tabs which I use every day for new, prices, weather etc...