"Crashing" into safe mode

Since my Firefox updated to version 10.0, it frequently and unexpectedly reverts into safe mode; I am unable to open links in new tabs (versus new windows), my settings and preferences are lost, etc. This does not happen with any particular website(s) and does not correct itself by rebooting Mozilla (from the task manager) or by rebooting the operating system. It somehow reverts back to normal mode without issue occasionally. HELP!

See:
*http://kb.mozillazine.org/Firefox_crashes
*https://support.mozilla.org/kb/Firefox+crashes

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Can I ssh to a Mac that's booted into Safe Mode?

I'm needing to ssh to a Mac that's been booted into Safe Mode (I'm already able to ssh to it in normal boot mode, and I know how to boot it into Safe Mode from the command line, i.e. sudo nvram boot-args="-x", then sudo reboot).
I can't just test this for myself, as it has to work first time, otherwise I'll be locked out of the remote Mac. If ssh would still work in Safe Mode, the plan is to then ssh to it and issue the command to set it back to normal boot mode (with sudo nvram boot-args="") and then reboot... job done.
Ideally, but not too important, I could VNC to it in Safe Mode instead, but ssh would do fine.
Does anyone know (for sure!) please?
In case anyone wondered, I'm wanting to do the Safe Boot because I'm told it can cure an issue with Adobe CS apps freaking out and locking up, crashing etc. I want to try this over the w/e, and have no physical access to the Mac. I've already set it to power on later (via pmset) - something I do routinely.
I thought an answer to this would be easy to find, but after Googling I've drawn a blank. Can't find it in any Apple docs either.
Thanks in advance!

If this was already covered somewhere else, I
apologize. I did some browsing for this topic but had
no luck finding anything...
Anyhoo, I'm trying to log in to my wife's B&W G3
(running Jaguar) from my G4 (running 10.4.2) using
secure shell but she doesn't have a password set up
on her computer. When I enter the ssh command in
Terminal, it asks for a password — I don't enter
anything and just hit the Return key. It returns with
a massage saying "Permission denied, please try
again." What can I do to log in w/o setting up her
machine with a password first?
If you want to use SSH securily I would suggest you disable password authenticaiton altogher. If you setup public key authentication it is more secure and better than using passwords anyway.
see how to setup ssh with public keys

HT201262 Will not boot into safe mode

Hello,
My MacBook pro 2012 crashed last night. Could not force quite so closed it down. On restart it would get halfway then stop. I have japped p-ram (I know it is my called this anymore) but then loads halfway and the turns off. I booted into disk repair and it found a couple of problems so repaired successfully. On restart it still gets halfway then turns off.
From reading the apple support it seems other people have the same problem. All mention booting into safe mode. For the life of me I cannot get my machine to boot into safe mode!
I do exactly like the instructions say but it always just goes to the page where I choose whether to log in as me or a guest.
What am I doing wrong?!
I am on a MacBook pro running Yosemite.
Many thanks for any help.
Chris.

Startup Issues - Resolve
Startup Issues - Resolve (2)
Startup Issues - Resolve (3)

Unable to boot into safe mode with FileVault 2 enabled

I was trying to boot into safe mode earlier to try and fix a few things. It looks like I can't and I suspect it is because of FV2.
When the system starts I press shift after the tone, but then I have to release shift and enter the password and then Lion will only boot into normal mode.
I've also tried with sudo nvram boot-args="-x" from the terminal, but while it seesm that this way Lion starts to boot into safe mode, after a while it just restarts as if something crashed etc and then again, I have to enter the password for FV and all again as in a loop, i.e. Lion won't even start this way.
So I went into the recovery mode and I could make Lion start again at least in normale mode with sudo nvram boot-args="".
Any idea of what could be preventing Lion from entering safe mode?
Thanks in advance

The symptom may be unrelated to FileVault 2. I encountered the symptom with FileVault 2 disabled and with backward conversion (decryption) complete.
Apple reference for my bug report: 152162960. If the symptoms on your Mac compare to those on mine: progress may seem to cease during safe fsck.
Vito, as you are comfortable with the nvram command, please try the following:
sudo nvram boot-args="-v -x"
Restart the computer and note the last verbose lines that appear before you sense that progress has ceased. Then please add a note of those lines to this topic.
Additional questions
What model is your Mac?
What type of disk for the startup volume?
How many files on that volume?
Approximately how large are the attributes file and catalog file? (You might gain this information with a demo version of iDefrag.)
My current envronment
MacBookPro5,2
8 GB memory
startup from internal 320 GB rotational disk, Serial-ATA, Hitachi HTS723232L9SA62 (probably Travelstar 7K320)
3,961,791 files
495,744 folders /* not including the root folder */
catalog file 3.0 GB, not fragmented
attributes file 2.2 GB, not fragmented.
At http://www.wuala.com/grahamperrin/public/2012/01/09/a/?mode=gallery file speedy.txt includes details of the volume.

Crashes in safe mode when I press addons, after disabling all addons with safe mode.

Firefox 6 crashes when opened. I booted into safe mode an pressed addons from the menu and it crashes again. I disable all addons permanently with the safe mode option and restart same problem occurs.

More detail:
Booted into safe mode its starts. However when i press addons from the menu it crashes.
Then I used the safe mode splash screen to disable all addons and the same thing happens I can load but as soon as I press addons menu it crashes again.

Will not boot normally, but will boot into Safe Mode... what now?

Hey y'all, I've got an iBook G4—purchased in 2003—that's had its hard drive replaced (due to the OE one failing) and that's on its second battery (which will need replacing soon unless I can't get this resolved, then it's new computer time... ugh).
Last night I left it open and on and probably had a couple of sites open in tabs in Safari, as well as Mail and iChat open (Preview might've been open, too).
When I went back to it this morning it wouldn't come off the black screen (I don't have it set to sleep), and I thought it was because it's dry here and I must've discharged into it through the trackpad (though I've always felt it before), which freezes it, a problem that's happened before and that's normally resolved with a restart. Confirmed it was, indeed, frozen by turning the number lock on and off (which turns the light for it at the top of the keyboard on and off).
Powered it down by holding the power button. On restart it wouldn't go beyond the black screen. Tried it a couple of times, same problem. Things were pretty warm, so I let it sit for a while. Went back to it and it would freeze on the gray apple screen with the progress "gear" freezing after a few seconds of whirling about. Managed to get to the UN/PW screen once, but it froze after entering my UN and PW. Now it freezes on the apple/gear screen every time.
I used the Hardware Test CD to check things and all the hardware tests showed up fine. Booted it into Safe Mode and ran Cocktail. Rebooted, no joy.
Booted again into Safe Mode and backed it up onto an external HDD using CCC. I had done a clone a few weeks ago, but I wanted my most recent emails, etc.
Used Disk Utility to repair permissions. No change. Attempted to boot from my cloned disk image. No go. Repaired some permissions on that drive and tried again. No joy.
The thing "works" in Safe Mode, but I cannot get it to boot into things normally.
Seeing as it was online, is it possible that I picked up some corrupted font that's causing these problems? Got that idea from other stuff I've read online regarding iBook G4 start-up issues and this: http://support.apple.com/kb/HT1564?viewlocale=en_US
Any other ideas?

Gents, truly, thank you.
In safe mode I couldn't disable the Airport card as it was already off and the hardware was "not found". No biggy. I simply pulled it. Booted up normally without a problem several times.
I swapped in a known-good Airport card from another iBook G4 and put this one's in that iBook. That computer wouldn't start and this one started up no problem (and I'm posting from it).
Weird that it would go bad like that, but it did. It's nice to know what the problem is and that the fix is easy. I'm glad I didn't go through any restore or wipe and install procedures.
So, again... THANK YOU!

Wifi goes on and off, backlit keyboard doesn't work and no sound since Lion upgrade. I can get the wifi back by going into safe mode and re booting(someone suggested on here), but can't let computer die or turn off or have to do it again.

My Wifi connection goes off if computer dies or shuts off, I can only make it work if I go into safe mode and reboot, it was just that, but now my keyboard doesn't light up like it's supposed to in low or no light and in system preferences it's like it doesn't exist. Also, the sound doesn't work, I can't turn it up or down, it shows the sound icon grayed out and the anti symbol when I push F11 and F12, also it's like it doesn't exist in system preferences either. I have never had any problems with my MB Pro, I purchased in Feb. 2010. , but I upgraded to Lion last month, I haven't been using my laptop as much since I had an Ipad I given to me, so I think that's why I didn't notice these issues right away. What do I do? HELP!! Do I take it to Apple? I don't have the Apple care warranty, so will it be expensive for them to fix? Can I get my money back for Lion if I restore to Snow Leopard?

Take it to an Apple store or AASP. How much it will cost will depend on their determination of the problems. To bad you didn't purchase extended AppleCare. No you don't get your money back for purchasing Lion.

Hard drive won't boot into safe mode

My mid 2010 Macbook Pro has suddenly decided to not boot up after installing BitDefender and running a scan.
I installed it on a whim when I saw minor malware that hijacked Safari, and decided to run a scan. While I was working on Photoshop, the scan must have finished because all of my windows disappeared and I was left with my desktop and the spinning gray loading at the bottom of my screen. I waited 20 minutes, realized it wasn't going anywhere and force shut down the Macbook by power button.
Now, I cannot successfully get it past the grey apple loading screen. Attempting to boot into safe mode still leaves it at the same screen. Tried to reset the PRAM, still can't get past the loading screen. I still have my OS disk, however it is Snow Leopard and my current is Mavericks and I'm unsure if it is a wise idea.
15 inch mid 2010 Macbook Pro running OS X Mavericks, how dead in the water am I and how much would this cost me to "fix"?

Use the original Snow Leopard installation disk and start the MBP as if you were going to reinstall the OSX. Early in the process you should see a menu bar on the top of the display. Click on UTILITIES and from the dropdown menu select Disk Utility. Run Disk Utility>First Aid, Verify and Repair. If it is not successful, the HDD will have to be replaced.
Ciao.

Can't boot into safe mode or prompt login window, need help.

Hello all,
This is cross-posted from the installations and set-up list.
Can anyone suggest a remedy for what's ailing this powerbook. its a g4 powerbook, i don't have much more info other than that. all indications are that it is running 10.2.6, although i was told that it had been updated to 10.2.8, its possible that it was updated only to 10.2.6. following the update, you get to the apple and spinning pinwheel screen and it will not proceed. literally, the pinwheel will spin for 24 hours+.
it looks like it gets to the point of the startup(login) items and hangs indefinitely. ie it will
if i start in verbose mode it will, give some clues:
truncated or malformed library: /System/Libray/Frameworks/Security.frameworks/Versions/A/Security
Some starup items failed to launch due to conflicts
/usr/libexec/crashreporterd: crashdump terminated by signal 5
init: getty repeating too quickly on port /dev/console, sleeping
/usr/libexec/crashreporterd: crashdump terminated by signal 5
last message repeated 10 times
/usr/libexec/crashreporterd: crashdump terminated by signal 5
init: getty repeating too quickly on port /dev/console, sleeping
/usr/libexec/crashreporterd: crashdump terminated by signal 5
last message repeated 5 times
this will continue to be repeated and i assume a new core.## file is sent to the /cores folder, until the hard drive is maxed out.
I can boot in single user mode and everything is fine but i cannot boot into safe mode.
fsck says the disk is fine, as does disk first aid, i have also corrected permissions, and followed many of the things that have been previously posted.
It looks like ther are conflicts with some startup items, what can i move from the starup folder and is best not to be touched?
what about the truncated library message?
also can i update to 10.2.8 from the single user mode, if i cannot get into safe mode?
any suggestions?
thanks in advance-
todd

I have solved this problem. I mounted the laptop in target mode and replaced this file:
/System/Library/Frameworks/Security.framework/Versions/A/Security
with the equivalent file from a machine running 10.2.8.
It booted all the way through then i upgraded to 10.2.8.

Won't boot into safe mode

My 2012 iMac 27" was randomly rebooting itself, while in Sleep. I assumed this was due to the cheap 32 GB memory I bought, but before I could change it back to the original memory, to test, the Mac booted into Safe Mode (I assume - a progress bar showing at the bottom of the boot screen, below the Apple logo), and did not get further than a half the way, and then shut down. I swapped the memory to the original 8GB. I tried booting again, no buttons held down, as then it wouldn't get further than a quarter of the way. Further attempts to boot do not work, even when holding down Option to choose the boot disk, pressing Shift for Safe Mode, or Option-S for Single User Mode. I assume it's trying to boot in Safe Mode, but failing?
I also tried using a good Mac with the bad Mac as the Target Disk boot mode - the good Mac does not see the bad Mac...
I have an external DVD drive, but that isn't an option as I can't go into boot drive select mode. What are my options, apart from sending the iMac back?

Booting into the Recovery HD should allow you to effect repairs - that's the point of it, so it's a bit concerning that it won't allow you to. The Recovery HD is a partition on the internal drive that should allow you to effect repairs to the Macintosh HD, albeit part of the same physical disk.
I'm no expert, but I'd be concerned that the hard disk is on the way out. Do you have backup of everything - Time Machine or a bootable clone, perhaps?
Maybe have another try with Command+r. If it fails I'm not sure what would be the best next step - it depends if you have a full and up-to-date backup of your disk so that you can restore.
One of the options of the Recovery HD is to allow you to re-install the OS, which won't delete your data.
The more extreme step would be Internet Recovery which would involve erasing everything and re-installing via the internet.
Worth reading this carefully before proceeding: http://support.apple.com/kb/HT4718
Disk Warrior from Alsoft (not cheap) is another possibility for recovering damaged disks, although it's not a guaranteed solution.

OS hangs at grey startup screen, won't boot into safe mode

I rebooted my G5 this morning and when it came back up, it hung on the grey screen with the Apple logo and the spinning 'gear' progress bar. I tried rebooting several times, but that didn't help. I tried booting from the install DVD (which it did) and ran disk utility (both verify & repair on the start up drive and on permissions. It claims to have found permission errors and fixed them.) I hunted for answers online and tried to boot into safe mode, which did not work.
Someone mentioned booting into verbose mode and I saw that the load sequence was choaking on the login.
What could the problem be and how can I fix it?

Hi Yosarian,
Minor permissions repairs are no concern: The good news is that your data is probably OK.
Three things can be happening: Some of the machines boot settings are corrupted, or the OS files or settings are damaged, or there's a hardware problem.
Resetting the machines power management chip, called a PMU or SMU, depending on your computer, and the PRAM will resolve machine boot settings problems. Run a google search for your model of Mac plus reset pmu OR smu for instructions. After that, reboot your computer and hold Option-Apple-P-R down as you power on. Hold all 4 keys until you hear the startup chime a second time.
You can test your hardware with the grey disk that came with it that ays AHT in little letters. Boot from the CD and run the extended test. Be patient: AHT can take a long time to boot and run.
If you reset your PMU and PRAM and pass a hardware diagnostic but still can't boot normally, in safe mode, or in single-user mode, the problem is system software. Reinstall from your latest installer, checking off Archive and Install and Preserve Users and Settings from the Options screen available at the screen where you choose which disk to install to.
Good luck,
John

IMac G5 running OS 10.4.11. Started playing with a bluetooth speaker (may or may not be related). Now I cannot get past the blue screen on startup. I can get into safe mode. Tried install disc for disc utility and reloaded OS. Still get blue screen.

I have an older iMac G5 running OS 10.4.11. The other day I started playing with a bluetooth speaker (may or may not be related). Now I cannot get past the blue screen on startup.
I can get into safe mode. But no regular startup.
I tried disabling bluetooth, thinking that might be related. It didn't help.
I even tried using the install disc to run disc utility. That didn't work so I reloaded the OS.
But I still get hung on the blue screen when trying a normal startup.
All help would be appreciated.

Try resetting the PMU/SMU and PRAM/NVRAM. You'd need to identify the mode of resetting depending on the model of your G5 iMac. The Apple support sites that would help you for this are –
http://support.apple.com/kb/HT1436
http://support.apple.com/kb/HT1939
http://support.apple.com/kb/HT1767
http://support.apple.com/kb/HT1379
I hope this solves your problem.

ITunes causes VAIO laptops to go into Safe mode

Hi, when I open iTunes on my Sony Vaio laptop (Windows 7) everything on the screen changes appears to be in Safe mode. Then it acts like its syncing with my iPod Touch but nothing gets downloaded - some music got removed from my Touch.
Any help would be appreciated.
Thank you,
- M

I have no problems, thankfully. I have Firefox on another computer and somehow FF went into "safe mode." I noticed that it ran faster, with no affect on what I do with the browser, which is nothing fancy. Therefore, I decided to put FF on this computer into "safe mode," too.
I had to ask how to do it because the instructions are not evident where mention of using it to fix problems occurs under 'help.' Why talk about using something without telling how to get to it. Very frustrating! Had it been done, I would not have had to bother folks here. Perhaps bring this omission to the attention of the "powers that be."

I can't lock Firefox into safe mode on You Tube.

I use Firefox 24 and have followed all the directions given to me by You Tube in order to lock the website into safe mode on the firefox browser. It works until I close firefox. Once I open it again it doesn't remember the setting and goes back to normal mode. It is supposed to be locked in for that browser until someone logs in under my google account and changes it back. I can lock it in Chrome and IE with no problems. I am about uninstall FIrefox...please help!

Hello Ammonthomas, if you started Firefox in Safe Mode, it will remain in Safe Mode until Firefox is completely closed.
i think an option is to make the site you want (You Tube) one (or the only) homepage and set firefox shortcut to open in safe mode : right-click the firefox shortcut > properties > target > change the target to : "C:\Program Files\Mozilla Firefox\firefox.exe" -safe-mode
'''BUT''' firefox with that, always start in safe mode (you lose the normal mode) !!!!
why do you want to run You Tube in safe mode ?
where is the you tube video to lock the site in safe mode ?
thank you

Key combination to get into Safe Mode on startup

My PowerBook froze up early this morning while I was working on a project. I went to restart it and it now starts up to a grey screen with a spinning gear. I do not have time to wait for AppleCare to come online today since the project is due later on today and I need to finish the it. I talked to AppleCare previously about this issue and they walked me through it, but I do not remember how, as it was about six months ago. The KnowledgeBase on Apple's website only works for Mac OS 10.3.9 and earlier, I am running 10.4.5 or 10.4.6. My question is, How can I get into Safe Mode on startup?

Uhh... (command + s) boots into single-user mode on startup.
To get into safe mode, hold down "Shift" after you turn the computer on and hear the startup chime. Don't let go till you see the spinning gear.

"Crashing" into safe mode

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