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!

You only see the reset button on the Help > Troubleshooting Information page if you use the profile that is marked as Default=1 in the profiles.ini file.

• http://kb.mozillazine.org/profiles.ini_file

If you do not have the "Reset" button then either use the Profile Manager to create a new profile or use the Profile Manager to start with the current default profile to get the reset button in Firefox.

Hi Thanks for you reply, I started with your suggestion of checking the profile and this is what I stuffed up.

1) Went to terminal "firefox -p" and deleted the profile and created a new - This went ok and Firefox restarted but the reset button in "Help-Troubleshooting" still did not appear. 2) Went to /home/******/.mozilla/firefox/ and opened the Profiles.ini file and noticed that it still said "Profile0" so this time I changed it to "Profile1" 3) trouble began.. it didn't like that and restarted as reset completly but it would not login to my Firefox login - Don't know why as I restarted it etc but it would not login. 4) Uninstalled Firefox and removed the users directory. 5) Also noticed that I had installed "mozilla-https-everywhere" so I removed that. 6) restarted and reinstalled Firefox with the extension from 5 and all of the websites load as per normal.

I think that the issue was from the "mozilla-https-everywhere" extension and I just want to report this in case others come upon the same issue.

Thanks for your prompt reply