Description:
Firefox has a "Safe Mode" function, similar to Windows "Safe Mode".
It allows you to temporarily (or "permanently") disable add-ons, toolbars, etc.
This can be handy if you are troubleshooting problems (e.g. faulty add-ons).
Actions that you can perform in "Safe Mode":
Disable all add-ons
Reset toolbars and controls
Delete all bookmarks except for backups
Reset all user preferences to Firefox defaults
Restore default search engines
How to start Firefox in "Safe Mode"
Step 1a - Quick Method
Hold the "Shift" key and click on the Firefox icon in the "Start Menu" (or on the pinned "Taskbar" icon).
This only works for single click items (it doesn't work with double click icons). Go to step 4 below.
Step 1b - The Long Method
This works without the Firefox icon.
Open the "Start Menu" and type "run" in the "Search" box.
(You can also use "Windows Logo key + R" and go to step 3).
Step 2
Click on "Run" in the results.
Step 3
Type "firefox -safe-mode" (without the quotes; remember the space)..
Click on the "OK" button.
Step 4
If you have enabled "Firefox - Choose User Profile", this window will open (if not, go to step 5).
Select the profile that you wish to run in "Safe Mode".
Click on the "Start Firefox" button.
Step 5a - Temporarily disable Firefox features
The "Firefox Safe Mode" window will open.
Click on the "Continue in Safe Mode" button.
Step 5b - "Permanently" disable Firefox features
The "Firefox Safe Mode" window will open.
Select the items that you want to "permanently" disable (or reset).
Click on the "Make Changes and Restart" button.
Note:
"Permanently" disabled add-ons will still appear on the "Add-ons" tab and can be reactivated.
Deleted and reset items have to be restored manually (reconfigured, recovered from backups or reinstalled).
Create a Firefox "Safe Mode" shortcut.
Before Firefox 8, Firefox used to create a "Safe Mode" shortcut when it was installed.
You can create your own "Safe Mode" shortcut.
Step 1
Duplicate your Firefox shortcut and rename it (e.g. Firefox (Safe Mode)).
Step 2
Replace the "firefox.exe" in the "Target:" box, with "firefox.exe -safe-mode" (without the quotes; remember the space).
In this gif I have created a "Safe Mode" shortcut.
Need more help? Try searching our extensive help and support site.
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Hello, i usually close firefox by End Process from Task Manager, then next time, when i open firefox, it always start use Safe mode. How can i force Firefox start normally?
Sorry about the delay.
Even though I am subscribed to this thread, I don't remember receiving a notification about your message.
I assume that for some reason, you can't close Firefox by:
Clicking the "Close" button?
Choosing "Exit" from the menu (orange Firefox button)?
If you kill Firefox using the Task Manager (or Process Explorer), the Session Manager file (sessionstore.js) will have an entry saying FF is still running.
The next time you start Firefox, it will assume that it crashed and it may offer to restore your previous session.
I sometimes have to kill Firefox (using Process Explorer).
This is usually because Adobe Flash player tries to start running during the shutdown sequence, which causes Firefox to lock up.
I haven't experienced the behaviour you describe.
Have you tried reinstalling Firefox?
If that doesn't work, you may need to backup certain files and totally uninstall and reinstall Firefox.
I can provide a list of those files, if you need them.
Last edited by lehnerus2000; 20 Oct 2012 at 09:13 PM..
Reason: Additional, Layout
System Manufacturer/Model Number n/a OS Windows 7 Ultimate SP1 (64 bit), Windows XP SP3, Linux Mint 14 MATE (64 bit) CPU AMD Phenom II x6 1055T, 2.8 GHz Motherboard ASRock 880GMH-LE/USB3 Memory 8GB DDR3 1333 G-Skill Ares F3-1333C9D-8GAO (4GB x 2) Graphics Card ATI Radeon HD6450 Sound Card Realtek? Monitor(s) Displays Samsung S23B350 Screen Resolution 1920x1080
Mouse Wired Optical Case Tower Hard Drives Western Digital 1 TB (SATA), Western Digital 1.5 TB (SATA), Western Digital 2 TB (SATA) Internet Speed DSL Other Info Ubuntu 10.04 (64 bit) replaced with Linux Mint 14 MATE (64 bit) - 2013-01-14
RAM & Graphics Card Upgraded - 2013-01-13
Monitor Upgraded - 2012-04-20
System Upgraded - 2011-05-21, 2010-07-14
HDD Upgraded - 2010-08-11, 2011-08-24
I have to use a batch file to kill firefox in a autorun program. I used Taskkill to kill it.
I tried to re-install a fresh firefox that doesn't have any add on or plugin, but still the same problem, and problem happenned on Windows XP only, if running on windows 7, it doesn't have any problem
Edit: i've just test some more times on windows 7, still the same
Last edited by Brink; 22 Oct 2012 at 09:16 AM..
Reason: removed broken image
I have to use a batch file to kill firefox in a autorun program. I used Taskkill to kill it.
I tried to re-install a fresh firefox that doesn't have any add on or plugin, but still the same problem, and problem happenned on Windows XP only, if running on windows 7, it doesn't have any problem
Edit: i've just test some more times on windows 7, still the same
I don't understand why you are using a batch file to "crash close" Firefox?
Why not close it normally?
Does it malfunction, if you close it normally?
As long as you keep "crash closing" FF, the Session Manager will "think" FF has crashed, because it hasn't closed normally.
You may be able to disable the Session Manager by changing the "When Firefox starts:" option to "Show my home page" or "Show a blank page".
( Firefox button > Options > Options > General )
I use a VB script to start FF and when I close FF (using the "Close" button) the script runs CCleaner for me.
System Manufacturer/Model Number n/a OS Windows 7 Ultimate SP1 (64 bit), Windows XP SP3, Linux Mint 14 MATE (64 bit) CPU AMD Phenom II x6 1055T, 2.8 GHz Motherboard ASRock 880GMH-LE/USB3 Memory 8GB DDR3 1333 G-Skill Ares F3-1333C9D-8GAO (4GB x 2) Graphics Card ATI Radeon HD6450 Sound Card Realtek? Monitor(s) Displays Samsung S23B350 Screen Resolution 1920x1080
Mouse Wired Optical Case Tower Hard Drives Western Digital 1 TB (SATA), Western Digital 1.5 TB (SATA), Western Digital 2 TB (SATA) Internet Speed DSL Other Info Ubuntu 10.04 (64 bit) replaced with Linux Mint 14 MATE (64 bit) - 2013-01-14
RAM & Graphics Card Upgraded - 2013-01-13
Monitor Upgraded - 2012-04-20
System Upgraded - 2011-05-21, 2010-07-14
HDD Upgraded - 2010-08-11, 2011-08-24
System Manufacturer/Model Number n/a OS Windows 7 Ultimate SP1 (64 bit), Windows XP SP3, Linux Mint 14 MATE (64 bit) CPU AMD Phenom II x6 1055T, 2.8 GHz Motherboard ASRock 880GMH-LE/USB3 Memory 8GB DDR3 1333 G-Skill Ares F3-1333C9D-8GAO (4GB x 2) Graphics Card ATI Radeon HD6450 Sound Card Realtek? Monitor(s) Displays Samsung S23B350 Screen Resolution 1920x1080
Mouse Wired Optical Case Tower Hard Drives Western Digital 1 TB (SATA), Western Digital 1.5 TB (SATA), Western Digital 2 TB (SATA) Internet Speed DSL Other Info Ubuntu 10.04 (64 bit) replaced with Linux Mint 14 MATE (64 bit) - 2013-01-14
RAM & Graphics Card Upgraded - 2013-01-13
Monitor Upgraded - 2012-04-20
System Upgraded - 2011-05-21, 2010-07-14
HDD Upgraded - 2010-08-11, 2011-08-24