Try a clean reinstall of Firefox that includes deleting the program files, but at this stage do NOT use any option that removes personal information or profile files.

• Has Firefox previously been installed and working correctly ?
• Is this only happening after an upgrade to Firefox ?
  • Firefox won't start - find solutions_firefox-will-not-start-after-updating
    (scroll the article for other solutions)
• What OS and type of device are you using ?

See also

• Troubleshoot and diagnose Firefox problems_5-reinstall-firefox
  You may need to use the selector on the page to get the article for the appropriate OS.
• http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Clean_reinstall
• http://kb.mozillazine.org/Browser_will_not_start_up

Hello Sandrad, Iam also looking for a solution in the same area,

does it fit to say; regarding reseting Firefox it does not help removing Firefox from your Software list, because installing firefox just gives you back the same?

ofcourse, your clikking on the icon and it just doesn't open, thats different from my problem. My Avg Anti virus was telling me firefox is using 230Mb space.

thoug iam just chatting up right now, maybe it helps, greets OscarSevilla

Hi oscarsevilla,

If you read the articles linked from my post above do any of them help you ? If not I suggest you start your own thread using /questions/new.

Post back here afterwards to confirm you have done so, and we will be able to find the new question.

N.B. I am not sure AVG telling you Firefox is using 230MB of space is actually anything significant or any indication of a problem.

Sandrad, have you tried opening Firefox in Safe Mode by holding down the Shift key as you click on the Firefox icon?

Sorry if this is all a bit basic but have you tried right clicking on the Firefox icon and clicking on "Open" ?

Also, you might try opening Firefox from the Start Menu or the All Programs list(or the equivalent in the OS you are using). Your Desktop icon may be the problem.

thanx for responding John99,

I believe your earlier post to Sandrad, does fit my thread. I do have good hope that i can work my way throug it. But right now iam trying to fit out my options as i want it to work well. Iam that kinda geek trying to know what iam doing as iam doing it. So John99, i would ask you to see my prinstcreen regarding 3. Delete the Firefox installation directory as the simple Windows xp user that iam needs to know wheter iam doing the right thing,

thanx for your notice

oscarsevilla,

You are correct. The directory Mozilla Firefox that you have attached a screenshot (printscreen) of is the directory that is to be deleted. It is the Firefox program directory.

Before you do that

1. Use Firefox to download the new Firefox installer
2. Use Firefox to identify the Firefox Profile. That is a directory that you will NOT be deleting.
   • see Profiles - Where Firefox stores your bookmarks, passwords and other user data_how-do-i-find-my-profile
   • (I presume the above redirects to the localised KB article, but not sure if it goes to the intended section https://support.mozilla.org/nl/kb/profielen-waar-firefox-gebruikersgegevens-bewaart#w_hoe-vind-ik-mijn-profiel )

It is possible that your security software (firewall, anti-virus) blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.

Remove all rules for Firefox and the plugin-container from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox and the plugin-container process and the updater process.

See:

• https://support.mozilla.org/kb/Server+not+found
• https://support.mozilla.org/kb/Firewalls

• https://support.mozilla.org/kb/fix-problems-connecting-websites-after-updating
• http://kb.mozillazine.org/Browser_will_not_start_up

Sandrad - feedback? Has any of this helped?