Tap here to go to the mobile version of the site.
Your Firefox is out of date and may contain a security risk! Upgrade Firefox

Support Forum

Instructions given for getting out of Safe Mode do not work (restart, reset), so how do I get the heck out of Safe Mode?


Tonight I went into Firefox for the first time in at least two years. When I had tried to open the version of Firefox I had in my Applications, it opened in Safe Mode.

So I downloaded the latest version, Firefox opened, and it automatically retrieved my old bookmarks. However, the download opened in Safe Mode.

I have pored through the Help files and attempted the few suggestions given to get out of Safe Mode. I closed and reopened Firefox, choosing Reset. That didn't work.

I closed Firefox and restarted my computer. Then I opened Firefox. It opened in Safe Mode and gave me no alternative.

I have only gone into Firefox, because I haven't been able to access the Cisco/Linksys Router Setup page ( using the instructions I was given. I assumed Chrome might have had an issue, so I decided to try Firefox. But I may never know if Firefox could have gotten me into the Router Setup page I need to access, because I am stuck in Safe Mode.

Although I strongly agree with the nonprofit, open-source nature of Firefox, I am remembering why I stopped using Firefox a long time ago: It is narrow in the scope of its Help functions, and it assumes too much knowledge from the user.

So, I am stuck, and I may never get this router set up, as I desperately need to.

I doubt I will be checking back into the forum, because I do not think there is any point. If I can't even get out of Safe Mode--and I don't know how it got into Safe Mode, because there have certainly not been any crashes in the two-plus years during which I have not used Firefox--there is no point in attempting to use this browser. If you wish to contact me, you may do so through the email address I am registered with.

Chosen solution

Did you check the target line in the Firefox desktop shortcut (right-click: Properties) to make sure that it doesn't have the -safe-mode command line switch appended?

Also make sure that you aren't holding down the Shift key or use a shortcut key with only the Shift modifier.

Read this answer in context 5

Additional System Details

Installed Plug-ins

  • Shockwave Flash 11.8 r800
  • Plug-in for Workspace Webmail
  • Plug-in for Workspace utilities
  • Adobe PDF Plug-In For Firefox and Netscape 10.1.8
  • Google Update
  • GEPlugin
  • Next Generation Java Plug-in 10.25.2 for Mozilla browsers
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
  • 5.1.20513.0
  • RealPlayer(tm) LiveConnect-Enabled Plug-In
  • RealPlayer Download Plugin
  • iTunes Detector Plug-in
  • RealNetworks(tm) RealDownloader Chrome Background Extension Plug-In
  • RealNetworks(tm) RealDownloader PepperFlashVideoShim Plug-In
  • RealNetworks(tm) RealDownloader HTML5VideoShim Plug-In
  • RealDownloader Plugin
  • Adobe Shockwave for Director Netscape plug-in, version
  • Adobe PDF Plug-In For Firefox and Netscape "9.5.2"
  • RealNetworks(tm) RealPlayer Chrome Background Extension Plug-In
  • RealPlayer(tm) HTML5VideoShim Plug-In


  • User Agent: Mozilla/5.0 (Windows NT 6.1; rv:24.0) Gecko/20100101 Firefox/24.0

More Information

  • Top 25 Contributor
  • Moderator
251 solutions 3016 answers


Certain Firefox problems can be solved by performing a Clean reinstall. This means you remove Firefox program files and then reinstall Firefox. Please follow these steps:

Note: You might want to print these steps or view them in another browser.

  1. Download the latest Desktop version of Firefox from http://www.mozilla.org and save the setup file to your computer.
  2. After the download finishes, close all Firefox windows (click Exit from the Firefox or File menu).
  3. Delete the Firefox installation folder, which is located in one of these locations, by default:
    • Windows:
      • C:\Program Files\Mozilla Firefox
      • C:\Program Files (x86)\Mozilla Firefox
    • Mac: Delete Firefox from the Applications folder.
    • Linux: If you installed Firefox with the distro-based package manager, you should use the same way to uninstall it - see Install Firefox on Linux. If you downloaded and installed the binary package from the Firefox download page, simply remove the folder firefox in your home directory.
  4. Now, go ahead and reinstall Firefox:
    1. Double-click the downloaded installation file and go through the steps of the installation wizard.
    2. Once the wizard is finished, choose to directly open Firefox after clicking the Finish button.

Please report back to see if this helped you!

Thank you.

  • Top 10 Contributor
  • Moderator
10748 solutions 96724 answers

Chosen Solution

Did you check the target line in the Firefox desktop shortcut (right-click: Properties) to make sure that it doesn't have the -safe-mode command line switch appended?

Also make sure that you aren't holding down the Shift key or use a shortcut key with only the Shift modifier.