This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

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.

Rohkem teavet

Teema arhiveeriti. Please ask a new question if you need help.

Firefox will only open once

  • 2 vastust
  • 9 on selline probleem
  • 10 views
  • Viimati vastas Morbus

AnonymousUser
AnonymousUser
more options

I can run Firefox once per profile & then it won't start again. I have to make a new profile to get it to open again. Alternatively, I can start Safe Mode and then exit after the prompt with the options to enter Safe Mode. After that I can start Firefox normally, but only once. Then I have to either create a new profile or get the prompt to enter Safe Mode. Without the Safe Mode trick profiles can only be used once before Firefox fails to start again. I already tried to treat this as an add-on problem, which is when I discovered that it was the fact that I ran Safe Mode, rather than because I disabled any add-ons, that made the difference. I have also uninstalled and reinstalled Firefox more than once.

This happened

Every time Firefox opened

== This is a relatively new build

I can run Firefox once per profile & then it won't start again. I have to make a new profile to get it to open again. Alternatively, I can start Safe Mode and then exit after the prompt with the options to enter Safe Mode. After that I can start Firefox normally, but only once. Then I have to either create a new profile or get the prompt to enter Safe Mode. Without the Safe Mode trick profiles can only be used once before Firefox fails to start again. I already tried to treat this as an add-on problem, which is when I discovered that it was the fact that I ran Safe Mode, rather than because I disabled any add-ons, that made the difference. I have also uninstalled and reinstalled Firefox more than once. == This happened == Every time Firefox opened == This is a relatively new build

All Replies (2)

Morbus
Morbus
more options

Hello Mark.

You may be having a problem with some Firefox add-on that is hindering your Firefox's normal behavior. Have you tried disabling all add-ons (just to check), to see if Firefox goes back to normal?

Whenever you have a problem with Firefox, whatever it is, you should make sure it's not coming from one of your installed add-ons, be it an extension, a theme or a plugin. To do that easily and cleanly, run Firefox in safe mode and select Disable all add-ons. If the problem disappears, you know it's from an add-on. Disable them all in normal mode, and enable them one at a time until you find the source of the problem. See this article for information about troubleshooting extensions and theme. You can troubleshoot plugins the same way.

If you want support for one of your add-ons, you'll need to contact its author.

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Do you get any error messages if you try to start Firefox a second time? Can you restart Firefox with that same profile after a reboot of the computer?