Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

I can not open firefox. Recieve message: "Couldnt find mozilla runtime". Can you help me?

  • 4 replies
  • 77 have this problem
  • 12866 views
  • Last reply by kobe

more options

I find file "mozilla runtime exe" under removed files in directory "removed files". What does it means?

All Replies (4)

more options

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!

more options

I stil have a problem. When doubleclick firefox I recieve message: "Could not find mozilla runtime". What is file "runtime.exe" and how can I find her? Thanks for your efforts.

more options

I'm having the same problem with some of the PC's at work. I tried updating which worked temporarily. I then tried a clean install and that also worked temporarily. I'm only seeing this problem on PC's in that office, but i'm unsure of why.

Firefox won't open from the .exe either, not just short cuts.

Any other ideas on how too fix this?


Cheers

more options

Have you seen the...

Article